IFIF YOUYOU CLEAN CLEAN IT, IT, THEY THEY WILL WILL COME! COME! FIELD OF DREAMS WATERSHED StreamFIELD Restoration, OF StormwaterDREAMS Wetlands, WATERSHED and a Vision for Change! STREAM RESTORATION, STORMWATER WETLANDS, AND A VISION FOR CHANGE! AT A GLANCE By Judith E. Joyce, Senior Geomorphologist, Impact7G  › —†‹–ŠǤ ‘› ‡ǡ‡‹‘” ‡‘‘”’Š‘Ž‘‰‹•–ǡ ’ƒ –͹  The City of Dyersville, home of the Field of Dreams movie   Š‡‹–›‘ˆ›‡”•˜‹ŽŽ‡ǡŠ‘‡‘ˆ–Š‡ ‹‡Ž†‘ˆ”‡ƒ•‘˜‹‡site, is leading efforts to improve the water quality of its Š‡ ‹–›article ‘ˆ ›‡”•˜‹ŽŽ‡ ǡat Š‘‡ a glance ‘ˆ ‹‡Ž† ‘ˆ streams while providing economic development opportunities •‹–‡ǡ‹•Ž‡ƒ†‹‰‡ˆˆ‘”–•–‘‹’”‘˜‡–Š‡™ƒ–‡”“—ƒŽ‹–›‘ˆ‹–• ”‡ƒ• ‘˜‹‡ •‹–‡ǡ ‹• Ž‡ƒ†‹‰ ‡ˆˆ‘”–• –‘ throughout the watershed. In 2017 the City began extensive •–”‡ƒ• ™Š‹Ž‡ ’”‘˜‹†‹‰ ‡ ‘‘‹  †‡˜‡Ž‘’‡– ‹’”‘˜‡The City –Š‡ of Dyersville, ™ƒ–‡” “—ƒŽ‹–› home of ‘ˆ Field ‹–• of •–”‡ƒ• Dreams movie community-wide planning, with the Dyersville Comprehensive site, is leading efforts to improve the water quality of‘’’‘”–—‹–‹‡•–Š”‘—‰Š‘—––Š‡™ƒ–‡”•Š‡† Plan and Dyersville Downtown Plan. OutreachǤ ʹͲͳ͹–Š‡‹–› efforts ™Š‹Ž‡ ’”‘˜‹†‹‰ ‡ ‘‘‹  †‡˜‡Ž‘’‡– its streams while providing economic development „‡‰ƒidentified ‡š–‡•‹˜‡ citizens’ ‘—‹–› concerns Ǧ™‹†‡with flooding, ’Žƒ‹‰ǡ water ™‹–Šquality –Š‡and ‘’’‘”–—‹–‹‡•ǤŠ‡˜‹•‹‘’Žƒ—‹–‡•’—„Ž‹ ǡ opportunities. The vision plan unites public, rural, and›‡”•˜‹ŽŽ‡‘’”‡Š‡•‹˜‡Žƒƒ†›‡”•˜‹ŽŽ‡‘™–‘™ recreational opportunities along the Bear Creek and the North ”—”ƒŽǡdowntown ƒ† †‘™–‘™’”‹˜ƒ–‡ private partners with ’ƒ”–‡”•the mantra™‹–Š “If you Fork Maquoketa River. ŽƒǤ—–”‡ƒ Š‡ˆˆ‘”–•‹†‡–‹ˆ‹‡†citizens’ ‘ ‡”•™‹–Š –Š‡ƒ–”ƒclean the“If water, you they clean will the come”! water, they will ˆŽ‘‘†‹‰ǡ ™ƒ–‡” “—ƒŽ‹–› ƒ† ”‡ ”‡ƒ–‹‘ƒŽ ‘’’‘”–—‹–‹‡• come”! Like much of Iowa, conversion of land from prairie to The confluence of funding for water quality practices,ƒŽ‘‰–Š‡ agricultural‡ƒ””‡‡ƒ† land over the–Š‡‘”–Š past 200 ‘”ƒ“ years has caused—‘‡–ƒ‹˜‡” major Ǥ  brownfield redevelopment, and stream restoration,  stream degradation—negatively impacting water quality, Š‡ ‘ˆŽ—‡ ‡‘ˆ ˆ—†‹‰ˆ‘” ™ƒ–‡”“—ƒŽ‹–› provides the framework needed to throw the first pitch‹‡ — Šwildlife ‘ˆhabitat, ‘™ƒǡ recreation, ‘˜‡”•‹‘ and putting ‘ˆ Žƒ† infrastructure ˆ”‘ ’”ƒ‹”‹‡ at risk. –‘ ’”ƒ –‹ ‡•ǡby addressing „”‘™ˆ‹‡Ž† water quality ”‡†‡˜‡Ž‘’‡–ǡ concerns and improve ƒ† To energize fans of the creek and to rally community support, ƒ‰”‹ —Ž–—”ƒŽŽƒ†‘˜‡”–Š‡’ƒ•–ʹͲͲ›‡ƒ”•Šƒ• ƒ—•‡†ƒŒ‘” •–”‡ƒ”‡•–‘”ƒ–‹‘ǡ’”‘˜‹†‡•river access. Homerun benefit–Š‡ˆ”ƒ‡™‘” include welcoming a vision for the “Field of Dreams Watershed” was developed. •–”‡ƒ†‡‰”ƒ†ƒ–‹‘—‡‰ƒ–‹˜‡Ž›‹’ƒ –‹‰™ƒ–‡”“—ƒŽ‹–›ǡ ‡‡†‡†–‘–Š”‘™–Š‡ˆ‹”•–’‹– Šaesthetics, providing wild places„› to ƒ††”‡••‹‰recreate, enjoying The vision plan unites public and private partners with the a brew, and/or unplugging and connecting with nature!™‹Ž†Ž‹ˆ‡Šƒ„‹–ƒ–ǡ”‡ ”‡ƒ–‹‘ǡƒ†’—––‹‰‹ˆ”ƒ•–”— –—”‡ƒ–mantra “If you clean the water, they will come”! ™ƒ–‡” “—ƒŽ‹–› ‘ ‡”• ƒ† ‹’”‘˜‡ ”‹˜‡” ”‹•Ǥ‘‡‡”‰‹œ‡ˆƒ•‘ˆ–Š‡ ”‡‡ƒ†–‘”ƒŽŽ› ‘—‹–› ƒ ‡••Ǥ ‘‡”—„‡‡ˆ‹–‹ Ž—†‡™‡Ž ‘‹‰ ƒ22‡•–Š‡–‹ IGWA•ǡ’”‘˜‹†‹‰™‹Ž†’Žƒ UnderGround | Summer‡•–‘ 2020”‡ ”‡ƒ–‡ǡ ‡Œ‘›‹‰ ƒ „”‡™ǡ ƒ†Ȁ‘” —’Ž—‰‰‹‰ ƒ† ‘‡ –‹‰™‹–Šƒ–—”‡Ǩ “If you clean the water, they will come”! support, a vision for the “Field of Dreams Watershed” was developed. Š‡˜‹•‹‘’Žƒ—‹–‡•’—„Ž‹ ƒ† ’”‹˜ƒ–‡’ƒ”–‡”•™‹–Š–Š‡ƒ–”ƒ Field of Dreams Watershed Field of Dreams Watershed The “Field of Dreams” Watershed comprises the headwaters of the North Fork Maquoketa River (HUC 10 0706000608) and encompasses  the City of Dyersville and the City of The “Field of Dreams” Watershed comprises the Cascade, Iowa. Within the watershed, reaches of Bear Creek, Hewitt Creek Š‡ƒ†™ƒ–‡”•‘ˆ–Š‡‘”–Š ‘”ƒ“—‘‡–ƒ‹˜‡” and the North Fork Maquoketa River ȋ  ͳͲ Ͳ͹Ͳ͸ͲͲͲ͸ͲͺȌ ƒ† ‡ ‘’ƒ••‡• –Š‡ “If you clean the water, they will come”! are included on the Iowa Department of support, a vision for the “Field of Dreams Watershed” was developed. Š‡˜‹•‹‘’Žƒ—‹–‡•’—„Ž‹ ƒ†Natural Resources Impaired Waters List. ‹–›‘ˆ›‡”•˜‹ŽŽ‡ƒ†–Š‡‹–›‘ˆƒ• ƒ†‡ǡ ‘™ƒǤ’”‹˜ƒ–‡’ƒ”–‡”•™‹–Š–Š‡ƒ–”ƒ ‹–Š‹ –Š‡ ™ƒ–‡”•Š‡†ǡ ”‡ƒ Š‡• ‘ˆ ‡ƒ” ”‡‡ǡField of Dreams Watershed Dyersville’s geography is defined by its rivers and streams. The North Fork of ‡™‹–– ”‡‡ ƒ† –Š‡ ‘”–Š ‘” ƒ“—‘‡–ƒ the Maquoketa River meanders through ‹˜‡” ƒ”‡ ‹ Ž—†‡† ‘ –Š‡ ‘™ƒ ‡’ƒ”–‡– ‘ˆ the downtown area and meets up ƒ–—”ƒŽ‡•‘—” ‡• ’ƒ‹”‡†ƒ–‡”•‹•–Ǥ The “Field of Dreams” Watershed comprises the with Bear creek at their confluence in Š‡ƒ†™ƒ–‡”•‘ˆ–Š‡‘”–Š ‘”ƒ“—‘‡–ƒ‹˜‡” Westside Park.  ȋ  ͳͲ Ͳ͹Ͳ͸ͲͲͲ͸ͲͺȌ ƒ† ‡ ‘’ƒ••‡• –Š‡ ‹–›‘ˆ›‡”•˜‹ŽŽ‡ƒ†–Š‡‹–›‘ˆƒ• ƒ†‡ǡ ‘™ƒǤ Recent redevelopment of the downtown ›‡”•˜‹ŽŽ‡’s ‰‡‘‰”ƒ’Š› ‹• †‡ˆ‹‡† „› ‹–• ”‹˜‡”•‹–Š‹ –Š‡ ™ƒ–‡”•Š‡†ǡ ”‡ƒ Š‡• ‘ˆ ‡ƒ” ”‡‡ǡ riverfront embraces the river, allowing ƒ†•–”‡ƒ•ǤŠ‡‘”–Š ‘”‘ˆ–Š‡ƒ“—‘‡–ƒ ‡™‹–– ”‡‡ ƒ† –Š‡ ‘”–Š ‘” ƒ“—‘‡–ƒ people to once again “get close” to the ‹˜‡” ƒ”‡ ‹ Ž—†‡† ‘ –Š‡ ‘™ƒ ‡’ƒ”–‡– ‘ˆ river will add more aesthetic appeal and ‹˜‡”‡ƒ†‡”•–Š”‘—‰Š–Š‡†‘™–‘™ƒ”‡ƒƒ†ƒ–—”ƒŽ‡•‘—” ‡• ’ƒ‹”‡†ƒ–‡”•‹•–Ǥ attraction to downtown. ‡‡–•—’™‹–Š‡ƒ” ”‡‡ƒ––Š‡‹” ‘ˆŽ—‡ ‡‹ ›‡”•˜‹ŽŽ‡’s ‰‡‘‰”ƒ’Š› ‹• †‡ˆ‹‡† „› ‹–• ”‹˜‡”• The planning process identified the ‡•–•‹†‡ƒ”Ǥ ƒ†•–”‡ƒ•ǤŠ‡‘”–Š ‘”‘ˆ–Š‡ƒ“—‘‡–ƒ need to preserve vital natural areas to  ‹˜‡”‡ƒ†‡”•–Š”‘—‰Š–Š‡†‘™–‘™ƒ”‡ƒƒ† reduce flooding impacts, provide natural IF YOU CLEAN IT, THEY WILL COME! ‡‡–•—’™‹–Š‡ƒ” ”‡‡ƒ––Š‡‹” ‘ˆŽ—‡ ‡‹ stormwater drainage, protect plant and ‡ ‡– ”‡†‡˜‡Ž‘’‡– ‘ˆ –Š‡ †‘™–‘™‡•–•‹†‡ƒ”Ǥ animal habitats, increase property value IF YOU CLEAN IT, THEY”‹˜‡”ˆ”‘– WILL‡„”ƒ ‡•–Š‡”‹˜‡”ǡƒ COME! ŽŽ‘™‹‰’‡‘’Ž‡–‘ for nearby development, and enhance FIELD OF DREAMS WATERSHED ‡ ‡– ”‡†‡˜‡Ž‘’‡– ‘ˆ –Š‡ †‘™–‘™ and connect the park system. Over the once again “get close” to the river will add more”‹˜‡”ˆ”‘– ‡„”ƒ ‡•–Š‡”‹˜‡”ǡƒŽŽ‘™‹‰’‡‘’Ž‡–‘ years, the City has acquired flood prone Stream Restoration, Stormwater Wetlands,ƒ‡•–Š‡–‹ ƒ’’‡ƒŽƒ†ƒ––”ƒ –‹‘–‘†‘™–‘™Ǥ and a Vision for Change!  once again “get close” to the river will add more houses and land and converted it to FIELD OF DREAMS WATERSHED ƒ‡•–Š‡–‹ ƒ’’‡ƒŽƒ†ƒ––”ƒ –‹‘–‘†‘™–‘™Ǥ park/open spaces.   STREAM RESTORATION, STORMWATER WETLANDS,Š‡ ’Žƒ‹‰ AND ’”‘ ‡•• A VISION ‹†‡–‹ˆ‹‡† FOR CHANGE! –Š‡ ‡‡† –‘Š‡ ’Žƒ‹‰ ’”‘ ‡•• ‹†‡–‹ˆ‹‡† –Š‡ ‡‡† –‘ (continued on page 24) ’”‡•‡”˜‡ ˜‹–ƒŽ ƒ–—”ƒŽ ƒ”‡ƒ• –‘ ”‡†— ‡ ˆŽ‘‘†‹‰ By Judith E. Joyce, AT Senior A GLANCE Geomorphologist, Impact7G ’”‡•‡”˜‡ ˜‹–ƒŽ ƒ–—”ƒŽ ƒ”‡ƒ• –‘ ”‡†— ‡ ˆŽ‘‘†‹‰‹’ƒ –•ǡ ’”‘˜‹†‡ ƒ–—”ƒŽ •–‘”™ƒ–‡” †”ƒ‹ƒ‰‡ǡ Figure 1: Field of Dreams Watershed (a.k.a. North Fork of the Maquoketa  River - HUC 100706000608). › —†‹–ŠǤ ‘› ‡‹’ƒ –•ǡǡ‡‹‘” ’”‘˜‹†‡ ‡‘‘”’Š‘Ž‘‰‹•– ƒ–—”ƒŽ •–‘”™ƒ–‡”ǡ ’ƒ –͹  †”ƒ‹ƒ‰‡ǡ’”‘–‡ –FigureFIGURE ’Žƒ– 1: 1:Field ƒ† Field ƒ‹ƒŽ ofof Dreams Šƒ„‹–ƒ–•ǡ Watershed Watershed ‹ ”‡ƒ•‡ (a.k.a. North Fork of the Maquoketa  ’”‘’‡”–›River(a.k.a. ˜ƒŽ—‡- HUC North ˆ‘”100706000608) Fork ‡ƒ”„› of the †‡˜‡Ž‘’‡–ǡMaquoketa. River ƒ† HUC 100706000608) Microsoft  ’”‘–‡ – ’Žƒ– ƒ† ƒ‹ƒŽ Šƒ„‹–ƒ–•ǡ ‹ ”‡ƒ•‡‡Šƒ ‡ƒ† ‘‡ ––Š‡’ƒ”•›•–‡Ǥ˜‡”–Š‡ Š‡‹–›‘ˆ›‡”•˜‹ŽŽ‡ǡŠ‘‡‘ˆ–Š‡ ‹‡Ž†‘ˆ”‡ƒ•‘˜‹‡ Š‡ ‹–› ‘ˆ ›‡”•˜‹ŽŽ‡ǡ Š‘‡ ‘ˆ ‹‡Ž† ‘ˆ ›‡ƒ”•ǡ–Š‡‹–›Šƒ•ƒ “—‹”‡†ˆŽ‘‘†’”‘‡Š‘—•‡• •‹–‡ǡ‹•Ž‡ƒ†‹‰‡ˆˆ‘”–•–‘‹’”‘˜‡–Š‡™ƒ–‡”“—ƒŽ‹–›‘ˆ‹–•’”‘’‡”–› ˜ƒŽ—‡ ˆ‘” ‡ƒ”„› †‡˜‡Ž‘’‡–ǡ ƒ†ƒ†Žƒ†ƒ† ‘˜‡”–‡†‹––‘’ƒ”Ȁ‘’‡•’ƒ ‡•Ǥ ”‡ƒ• ‘˜‹‡ •‹–‡ǡ ‹• Ž‡ƒ†‹‰ ‡ˆˆ‘”–• –‘ •–”‡ƒ•‡Šƒ ‡ƒ† ‘‡ ––Š‡’ƒ”•›•–‡Ǥ ™Š‹Ž‡ ’”‘˜‹†‹‰ ‡ ‘‘‹  †‡˜‡Ž‘’‡–˜‡”–Š‡ ‹’”‘˜‡ –Š‡ ™ƒ–‡” “—ƒŽ‹–› ‘ˆ ‹–• •–”‡ƒ• ‘’’‘”–—‹–‹‡•–Š”‘—‰Š‘—––Š‡™ƒ–‡”•Š‡†Ǥ ʹͲͳ͹–Š‡‹–›  ™Š‹Ž‡ ’”‘˜‹†‹‰ ‡ ‘‘‹  †‡˜‡Ž‘’‡– ›‡ƒ”•ǡ–Š‡‹–›Šƒ•ƒ “—‹”‡†ˆŽ‘‘†’”‘‡Š‘—•‡•  „‡‰ƒ ‡š–‡•‹˜‡ ‘—‹–›Ǧ™‹†‡ ’Žƒ‹‰ǡ ™‹–Š –Š‡ Title ‘’’‘”–—‹–‹‡•ǤŠ‡˜‹•‹‘’Žƒ—‹–‡•’—„Ž‹ ǡ ƒ†Žƒ†ƒ† ‘˜‡”–‡†‹––‘’ƒ”Ȁ‘’‡•’ƒ ‡•Ǥ ›‡”•˜‹ŽŽ‡‘’”‡Š‡•‹˜‡Žƒƒ†›‡”•˜‹ŽŽ‡‘™–‘™  ”—”ƒŽǡ ƒ† †‘™–‘™’”‹˜ƒ–‡ ’ƒ”–‡”• ™‹–Š  ŽƒǤ—–”‡ƒ Š‡ˆˆ‘”–•‹†‡–‹ˆ‹‡†citizens’ ‘ ‡”•™‹–Š –Š‡ƒ–”ƒ“If you clean the water, they will  ˆŽ‘‘†‹‰ǡ ™ƒ–‡” “—ƒŽ‹–› ƒ† ”‡ ”‡ƒ–‹‘ƒŽ ‘’’‘”–—‹–‹‡•  come”! ƒŽ‘‰–Š‡ ‡ƒ””‡‡ƒ†–Š‡‘”–Š ‘”ƒ“—‘‡–ƒ‹˜‡”Ǥ      Primary Business Address Š‡ ‘ˆŽ—‡ ‡‘ˆ ˆ—†‹‰ˆ‘” ™ƒ–‡”“—ƒŽ‹–›  Address Line 2 ‹‡ — Š ‘ˆ ‘™ƒǡ ‘˜‡”•‹‘ ‘ˆ Žƒ† ˆ”‘ ’”ƒ‹”‹‡ –‘  Address Line 3 ’”ƒ –‹ ‡•ǡ „”‘™ˆ‹‡Ž† ”‡†‡˜‡Ž‘’‡–ǡ ƒ†  Address Line 4 ƒ‰”‹ —Ž–—”ƒŽŽƒ†‘˜‡”–Š‡’ƒ•–ʹͲͲ›‡ƒ”•Šƒ• ƒ—•‡†ƒŒ‘”  •–”‡ƒ”‡•–‘”ƒ–‹‘ǡ’”‘˜‹†‡•–Š‡ˆ”ƒ‡™‘”  •–”‡ƒ†‡‰”ƒ†ƒ–‹‘—‡‰ƒ–‹˜‡Ž›‹’ƒ –‹‰™ƒ–‡”“—ƒŽ‹–›ǡ Phone: 5555555555 ‡‡†‡†–‘–Š”‘™–Š‡ˆ‹”•–’‹– Š„›ƒ††”‡••‹‰  Fax: 5555555555 ™‹Ž†Ž‹ˆ‡Šƒ„‹–ƒ–ǡ”‡ ”‡ƒ–‹‘ǡƒ†’—––‹‰‹ˆ”ƒ•–”— –—”‡ƒ– ™ƒ–‡” “—ƒŽ‹–› ‘ ‡”• ƒ† ‹’”‘˜‡ ”‹˜‡”  Figure 2: Flood Hazard Map for downtown Dyersville. Email: ”‹•Ǥ‘‡‡”‰‹œ‡ˆƒ•‘ˆ–Š‡ ”‡‡ƒ†–‘”ƒŽŽ› ‘—‹–› FIGURE 2: Flood Hazard Map for downtown Dyersville [email protected] ƒ ‡••Ǥ ‘‡”—„‡‡ˆ‹–‹ Ž—†‡™‡Ž ‘‹‰  ƒ‡•–Š‡–‹ •ǡ’”‘˜‹†‹‰™‹Ž†’Žƒ ‡•–‘”‡ ”‡ƒ–‡ǡ  www.igwa.org 23 ‡Œ‘›‹‰ ƒ „”‡™ǡ ƒ†Ȁ‘” —’Ž—‰‰‹‰ ƒ†  ‘‡ –‹‰™‹–Šƒ–—”‡Ǩ  

Figure 2: Flood Hazard Map for downtown Dyersville. FIGUREFigure 3 3:: Local Local kids kids floating floating Bear Bear Creek Creek encounter encounter part Impact7G'spart Impact7G’s stream stream team :team Megan : MeganDown (Geologist)Down (Geologist) and Jeromy and PribilJeromy (Geologist) Pribil (Geologist).

(continued from page 23) The Bear Creek Restoration: Westside Park (Upper): Lead Off HitterThe Bear Creek Restoration: Westside Park (Upper): Lead Off Hitter In the batting lineup, the leadoff of Bear Creek. The confluence of River Restoration Toolbox. practice features stream restoration this outside the box funding (SRF Impact7G assessed nearly 2,500 along Bear Creek. Like many Midwest Sponsored Project) along with the Linear Feet (LF) of Bear Creek and urban streams, reaches are degraded, implementation of the Iowa DNR determined that nearly 1,600 LF entrenched, –Š‡ „ƒ––‹‰ and are Ž‹‡—’ǡ disconnected –Š‡ Ž‡ƒ†‘ˆˆ ’”ƒ –‹ ‡River Restoration ˆ‡ƒ–—”‡• Toolbox •–”‡ƒ (IRRT) ”‡•–‘”ƒ–‹‘ of ƒŽ‘‰ stream ‡ƒ” could ”‡‡Ǥbe restored  ‹‡ to help ƒ› from‹†™‡•– their —”„ƒhistoric floodplains •–”‡ƒ•ǡ ”‡ƒ Š‡• ƒ”‡provided †‡‰”ƒ†‡†ǡ the framework‡–”‡ Š‡†ǡ (https://www. ƒ† ƒ”‡ †‹• ‘‡ –‡†improve water quality. ˆ”‘ –Š‡‹”Restoration Š‹•–‘”‹  ˆŽ‘‘†’Žƒ‹•™‹–Š”‡Žƒ–‹˜‡Ž›Ž‘™with relatively low-valued riparian Ǧ˜ƒŽ—‡†”‹’ƒ”‹ƒ˜‡‰‡–ƒ–‹‘†‘‹ƒ–‡†„›Š‹‰ŠŽ›‹˜ƒ•‹˜‡•’‡ ‹‡•ǤŠ‡•‡iowadnr.gov/Environmental-Protection/ practices include creating inner- †‡‰”ƒ†‡†•–”‡ƒ•›•–‡••–”‹‡‘—–†—‡–‘vegetation dominated by highly Water-Quality/River-Restoration/’‘‘”™ƒ–‡”“—ƒŽ‹–› ƒ—•‡†„›streambank‡š ‡••‹˜‡Ž‘ƒ†‹‰‘ˆ•‡†‹‡–ǡ benches; creating oxbow invasive species. These degraded River-Restoration-Toolbox) needed to wetlands; placing structures to —–”‹‡–•ǡstream systems „ƒ –‡”‹ƒǡ strike out ƒ† due –Š‡”ƒŽ to poor ’‘ŽŽ—–‹‘Ǥthrow the first‡•–‘”ƒ–‹‘ pitch by •›•–‡ƒ–‹ ƒŽŽ›addressing ‘†‹ˆ‹‡•control the –Š‡stream ’Š›•‹ ƒŽǡ grade; realign Š‡‹ ƒŽǡ and ƒ†water„‹‘Ž‘‰‹ ƒŽ quality caused ‘†‹–‹‘• by excessive –‘ ”‡ƒ–‡water ƒ quality‡ ‘•›•–‡ concerns–”ƒŒ‡ –‘”› and improve–‘™ƒ”† define ƒ Š‹‰Š‡” the channel;Ǧˆ— –‹‘‹‰ create habitat; ƒ–—”ƒŽ ‡ ‘Ž‘‰‹ ƒloading of Žsediment, ’”‘ ‡••‡• nutrients, ƒ† •‡”˜‹ ‡•Ǥriver ‘‡”— access to ‘—‹–› bring the community „‡‡ˆ‹– • ‹ Ž—†‡restoring ™‡Ž ‘‹‰ native streambank; ƒ‡•–Š‡–‹ restoring• –Šƒ–  ’”‘˜‹†bacteria,‡• and™‹Ž†’Žƒ ‡•–‘ thermal pollution.”‡ ”‡ƒ–‡ǡ—’Ž—‰ƒ† back to the ‘‡ –™‹–Šƒ–—”‡ water. Having an industryǨ floodplain vegetation; and lowering the Restoration systematically modifies standard, like the IRRT, associated bottom culvert elevation of the most the physical, chemical, and biological with some professional qualifications downstream portion of the project, in ‡ ‡– ‘•–”— –‹‘‘ˆƒ™ƒ•–‡™ƒ–‡”–”‡ƒ–‡–ˆƒ ‹Ž‹–›Šƒ•ƒŽŽ‘™‡†–Š‡‹–›–‘ ƒ’–—”‡ˆ—†‹‰ˆ”‘conditions to create an ecosystem has resulted in a higher level of order to facilitate sediment transport.–Š‡ –ƒ–‡trajectory ‡˜‘Ž˜‹‰ toward a higher-functioning —† ȋ Ȍ –‘ ‹’”‘˜‡assessment ™ƒ–‡” and “—ƒŽ‹–›better designs –Š”‘—‰Š –Š‡ ”‡•–‘”ƒ–‹‘Impact7G is working ‘ˆ ‡ƒ” with ”‡‡Ǥ the CityŠ‡ ‘ˆŽ—‡ ‡‘ˆnatural ecological–Š‹• processes‘—–•‹†‡–Š‡„‘šˆ—†‹‰ and allowingȋ ’‘•‘”‡†”‘Œ‡ –Ȍ the reviewer to be more ƒŽ‘‰™‹–Š–Š‡‹’Ž‡‡–ƒ–‹‘‘ˆ–Š‡of Dyersville to make the restored ‘™ƒservices. Homerun  community ‹˜‡” ‡•–‘”ƒ–‹‘comfortable ‘‘Ž„‘š with stream restoration ȋ Ȍ as ’”‘˜‹†‡†stream to improve –Š‡ recreation ˆ”ƒ‡™‘” along  ȋbenefitsŠ––’•ǣȀȀ™™™Ǥ‹‘™ƒ†”Ǥ‰‘˜Ȁ˜‹”‘‡–ƒŽ include welcoming aesthetics a water qualityǦ”‘–‡ –‹‘Ȁƒ–‡” practice. Ǧ—ƒŽ‹–›Ȁ‹˜‡”the creekǦ‡•–‘”ƒ–‹‘Ȁ‹˜‡” by installing natural-lookingǦ ‡•–‘”ƒ–‹‘that provides Ǧwild‘‘Ž„‘š placesȌ to‡‡†‡†–‘–Š recreate, ”‘™–Š‡ˆ‹”•–’‹– Š„›ƒ††”‡••‹‰™ƒ–‡”“—ƒŽ‹–› ‘ ‡”•ƒ†‹’”‘˜‡stone crossings and incorporating the unplug and connect with nature! The City teamed up with Impact7G existing multi-use trail into the project ”‹˜‡”ƒ ‡••–‘„”‹‰–Š‡ ‘—‹–›„ƒ –‘–Š‡™ƒ–‡”Ǥ ƒ˜‹‰ƒ‹†—•–”›•–ƒ†ƒ”†ǡŽ‹‡–Š‡ ǡRecent construction of a wastewater and IIW with Impact7G leading the design. Construction is scheduled for ƒ••‘ ‹ƒ–‡†™‹–Š•‘‡’”‘ˆ‡••‹‘ƒŽ“—ƒŽ‹ˆ‹ ƒ–‹‘•Šƒ•”‡•—Ž–‡†‹ƒŠ‹‰Š‡”Ž‡˜‡Ž‘ˆƒ•treatment facility has allowed the City stream assessment and restoration the Fall of 2020.•‡••‡–ƒ†„‡––‡” †‡•‹‰•ƒŽŽ‘™‹‰–Š‡”‡˜‹‡™‡”–‘„‡‘”‡ ‘ˆ‘”–ƒ„Ž‡™‹–Š•–”‡ƒ”‡•–‘”ƒ–‹‘ƒ•ƒ™ƒ–‡”“—ƒŽ‹–›’”ƒ –‹ ‡to capture funding from the State design. Note, this was the first SRF Ǥ Revolving Fund (SRF) to improve Sponsored project to utilize the Iowa (continued on page 26) water quality through the restoration Department of Natural Resources

24 IGWA UnderGround | Summer 2020 PROJECT OUTCOMES

• Utilizes SRF dollars to improve water quality by stabilizing streambanks, aerating the water, effectively moving sediment, reducing water temperature, and removing pollutants.

• Streambank stabilization helps protect City utilities and infrastructure, as well as prevents adjacent property owners from losing land due to channel migration.

• Serves as a natural space functioning as a stream and wetland complex, offering a way for residents to interact with and enjoy nature. FIGURE 4: Before photos along Bear Creek. Note, Rip rap banks from toe to top of bank, bank collapse and invasive plants (Japanese Knotweed) STREAM RESTORATION PRACTICES Figure 3: Local kids floating Bear Creek encounter part Impact7G's stream team: Megan Down (Geologist) and Jeromy Pribil (Geologist).

The Bear Creek Restoration: Westside Park (Upper): Lead Off Hitter

  –Š‡ „ƒ––‹‰ Ž‹‡—’ǡ –Š‡ Ž‡ƒ†‘ˆˆ ’”ƒ –‹ ‡ ˆ‡ƒ–—”‡• •–”‡ƒ ”‡•–‘”ƒ–‹‘ ƒŽ‘‰ ‡ƒ” ”‡‡Ǥ  ‹‡ ƒ› FIGURE 5: Sills FIGURE 6: Dry Bottom Oxbow FIGURE 7: Naturalized banks, riffle, and liner deflector ‹†™‡•– —”„ƒ •–”‡ƒ•ǡ ”‡ƒ Š‡• ƒ”‡ †‡‰”ƒ†‡†ǡ ‡–”‡ Š‡†ǡ ƒ† ƒ”‡ †‹• ‘‡ –‡† ˆ”‘ –Š‡‹” Š‹•–‘”‹  ˆŽ‘‘†’Žƒ‹•™‹–Š”‡Žƒ–‹˜‡Ž›Ž‘™Ǧ˜ƒŽ—‡†”‹’ƒ”‹ƒ˜‡‰‡–ƒ–‹‘†‘‹ƒ–‡†„›Š‹‰ŠŽ›‹˜ƒ•‹˜‡•’‡ ‹‡•ǤŠ‡•‡ †‡‰”ƒ†‡†•–”‡ƒ•›•–‡••–”‹‡‘—–†—‡–‘’‘‘”™ƒ–‡”“—ƒŽ‹–› ƒ—•‡†„›‡š ‡••‹˜‡Ž‘ƒ†‹‰‘ˆ•‡†‹‡–ǡ —–”‹‡–•ǡ „ƒ –‡”‹ƒǡ ƒ† –Š‡”ƒŽ ’‘ŽŽ—–‹‘Ǥ ‡•–‘”ƒ–‹‘ •›•–‡ƒ–‹ ƒŽŽ› ‘†‹ˆ‹‡• –Š‡ ’Š›•‹ ƒŽǡ Š‡‹ ƒŽǡ ƒ†„‹‘Ž‘‰‹ ƒŽ ‘†‹–‹‘• –‘ ”‡ƒ–‡ ƒ‡ ‘•›•–‡–”ƒŒ‡ –‘”›–‘™ƒ”† ƒ Š‹‰Š‡”Ǧˆ— –‹‘‹‰ ƒ–—”ƒŽ ‡ ‘Ž‘‰‹ ƒŽ ’”‘ ‡••‡• ƒ† •‡”˜‹ ‡•Ǥ ‘‡”— ‘—‹–› „‡‡ˆ‹–• ‹ Ž—†‡ ™‡Ž ‘‹‰ ƒ‡•–Š‡–‹ • –Šƒ– ’”‘˜‹†‡•™‹Ž†’Žƒ ‡•–‘”‡ ”‡ƒ–‡ǡ—’Ž—‰ƒ† ‘‡ –™‹–Šƒ–—”‡Ǩ  ‡ ‡– ‘•–”— –‹‘‘ˆƒ™ƒ•–‡™ƒ–‡”–”‡ƒ–‡–ˆƒ ‹Ž‹–›Šƒ•ƒŽŽ‘™‡†–Š‡‹–›–‘ ƒ’–—”‡ˆ—†‹‰ˆ”‘–Š‡ –ƒ–‡ ‡˜‘Ž˜‹‰ —† ȋ Ȍ –‘ ‹’”‘˜‡ ™ƒ–‡” “—ƒŽ‹–› –Š”‘—‰Š –Š‡ ”‡•–‘”ƒ–‹‘ ‘ˆ ‡ƒ” ”‡‡Ǥ Š‡ FIGURE 8: Wet Bottom Oxbow FIGURE 9: Cross Vane FIGURE 10: J hook ‘ˆŽ—‡ ‡‘ˆ–Š‹•‘—–•‹†‡–Š‡„‘šˆ—†‹‰ȋ ’‘•‘”‡†”‘Œ‡ –ȌƒŽ‘‰™‹–Š–Š‡‹’Ž‡‡–ƒ–‹‘‘ˆ–Š‡ ‘™ƒ  ‹˜‡” ‡•–‘”ƒ–‹‘ ‘‘Ž„‘š ȋ Ȍ ’”‘˜‹†‡† –Š‡ ˆ”ƒ‡™‘” ȋŠ––’•ǣȀȀ™™™Ǥ‹‘™ƒ†”Ǥ‰‘˜Ȁ˜‹”‘‡–ƒŽǦ”‘–‡ –‹‘Ȁƒ–‡”Ǧ—ƒŽ‹–›Ȁ‹˜‡”Ǧ‡•–‘”ƒ–‹‘Ȁ‹˜‡”Ǧ ‡•–‘”ƒ–‹‘Ǧ‘‘Ž„‘šȌ‡‡†‡†–‘–Š”‘™–Š‡ˆ‹”•–’‹– Š„›ƒ††”‡••‹‰™ƒ–‡”“—ƒŽ‹–› ‘ ‡”•ƒ†‹’”‘˜‡ ”‹˜‡”ƒ ‡••–‘„”‹‰–Š‡ ‘—‹–›„ƒ –‘–Š‡™ƒ–‡”Ǥ ƒ˜‹‰ƒ‹†—•–”›•–ƒ†ƒ”†ǡŽ‹‡–Š‡ ǡ ƒ••‘ ‹ƒ–‡†™‹–Š•‘‡’”‘ˆ‡••‹‘ƒŽ“—ƒŽ‹ˆ‹ ƒ–‹‘•Šƒ•”‡•—Ž–‡†‹ƒŠ‹‰Š‡”Ž‡˜‡Ž‘ˆƒ••‡••‡–ƒ†„‡––‡” †‡•‹‰•ƒŽŽ‘™‹‰–Š‡”‡˜‹‡™‡”–‘„‡‘”‡ ‘ˆ‘”–ƒ„Ž‡™‹–Š•–”‡ƒ”‡•–‘”ƒ–‹‘ƒ•ƒ™ƒ–‡”“—ƒŽ‹–›’”ƒ –‹ ‡Ǥ  FIGURE 12: Picking Rock for stream structures at Bard Quarry, Dyersville Iowa. Impact7G “Stream Team” Judith E. Joyce, Senior FIGURE 11: Naturalized Banks, inner berms, and linear deflectors Geomorphologist and Reid Stamer, Stream Restoration Ecologist www.igwa.org 25 (continued from page 25) Stormwater Wetland – Beltline Road: Contact Hitter Next up to the plate is the Field of Dreams Stormwater Wetland #1. The site was chosen due to its prominent location on City owned land along the North Fork Maquoketa River near the convergence of Hewitt Creek.

Construction of the project is anticipated to begin Spring of 2020 and the entire project is scheduled to be complete by June 30, 2021.

Stormwater wetlands are best applied in watersheds of 10 or more acres, FIGURE 13: Soil Samples were taken by a Giddings Rig mounted on a John Deer which have been urbanized or Gator and described in the field. Will Downey (Wetland Scientist) and Judith E. Joyce where urban growth is planned. Soil (Geomorphologist) pictured. investigation determined the site has limited infiltration potential with seasonal high ground water relatively close to the surface; both are ideal for stormwater wetlands. The proposed wetland will treat 12.6 acres of run- off from a sub-watershed consisting of a high percentage of impermeable surfaces. Contaminants from runoff include sediment, salt, pollutants/ toxins, bacteria, and nutrients.

In the stormwater wetland pollutants are removed from stormwater runoff through uptake by wetland vegetation and biota (algae, bacterial), FIGURE 14: Location of Field of Dreams Stormwater Wetland #1 vegetative filtering, soil adsorption and gravitational settling in the slow- moving marsh flow. Volatilization and chemical activity can also occur, breaking down and assimilating several other stormwater contaminants such as hydrocarbons.

Currently, run-off from the 12.6-acre urban sub-watershed directly flows through a stormwater pipe into the North Fork Maquoketa River. The proposed stormwater wetland will intercept and treat the water quality volume (WQv) from a 1.25” rain event. A main benefit will be the reduction in the impacts from warm urban runoff through cooling the runoff before it enters the North Fork Maquoketa River.

In addition, the following percent removal of key pollutants are FIGURE 15: Stormwater Water Wetla nd illustration provided by IDALS expected:

26 IGWA UnderGround | Summer 2020 • TSS – 75% WQI provides funding for projects in Section 1 of the Iowa Nutrient • Total Phosphorous – 40% that demonstrate strong ties to the Reduction Strategy. • Total Nitrogen – 30% Iowa Nutrient Reduction Strategy. • Metals – 40% These projects focus on adoption and Finally, the Field of Dreams • Bacteria – 80% implementation of urban conservation Stormwater Wetland will provide • Hydrocarbons – 85% practices that provide nutrient an aesthetically pleasing, natural load reductions to water resources greenspace and outdoor classroom Water Quality Initiative (WQI) in combination with outreach and along the North Fork Maquoketa River matching funds were provided by education components demonstrating near downtown Dyersville. the Iowa Department of Agriculture how projects will work to support the and Land Stewart Ship (IDALS). nonpoint source action items outlined

Reaching out to the Fans Building a fan base is key to insuring water quality and flood protection remains a priority. Outreach keeps funding agencies “in the stands” so they continue to support the City of Dyersville’s vision. A campaign focused on marketing, social media, community events, and “fan appreciation days” are planned to keep the momentum moving forward. FIGURE 16: Reid Stamer, Stream Restoration Ecologist with Impact7G leads a tour A newly constructed ballpark at with the Maquoketa River WMA and IISC/University of Iowa Students along Bear Creek the Field of Dreams movie site in during construction August 20, 2020 Dyersville, Iowa will be hosting a Major League Baseball game schedule for the Summer 2021. Festivities are currently planned for the week leading up to the big game, which is anticipated to bring an additional 30,000 people to the City of Dyersville. The City is utilizing this once in a lifetime event to showcase the importance of water quality and urban and rural watershed improvements that can be put into practice. Plans include having an environmental art project during this week as way to bring people to the water and raise additional awareness on the importance water quality. MANAGING

Bear Creek Restoration and the Field of Dreams Stormwater Wetland #1 will be celebrated with ribbon LIFE’S cuttings, community planting days MOST and tours and will serve as great PRECIOUS demonstration sites for the region as water quality practices are becoming increasingly important to RESOURCE the residents of the Field of Dreams Watershed. The sites will also provide Assessment • Supply • Storage area school children to engage in nature, access the stream and learn Conveyance • Treatment about how wetlands work. www.stanleyconsultants.com | 319.626.3990

(continued on page 28) www.igwa.org 27 (continued from page 27)

With the City of Dyersville emerging as a leader in water quality, Dyersville understands that both urban and rural members of the Field of Dreams Watershed need to work together to truly improve the quality of the water that flows through the watershed. The City’s goal is to use the Field of Dreams Stormwater Wetland project as way to engage the agriculture community and build on the management practices and monitoring that farmers upstream have been doing since 2004. Tours are planned with the Dubuque County Soil and Water District. Area farmers will be invited to the see the effort the City of FIGURE 17: Live Webcam over Bear Creek Dyersville is making towards improved water quality and begin the discussion To further engage the community, a Vimeo will host several videos. Future on additional measures both the live webcam was installed to monitor tours, presentations, Dyersville public urban communities and agricultural the construction of Bear Creek Access video, branding and more! community can implement within the Restoration and live video was posted Field of Dreams Watershed. periodically to social media outlets. Future Line Up City of Dyersville – Channel 8 on

The two projects discussed along with the community outreach efforts Photo: Gingerich Well & Pump Service are only three members of the overall team of players. Future players have been identified to reduce stormwater runoff, reduce flooding, and improve water quality, while creating recreational spaces and improving aesthetics.

The City of Dyersville has developed a Field of Dreams Watershed Urban Vision Plan to identify future improvements within the City’s urban section. Practices include large wetland areas, oxbows, riparian buffers, native plantings, and additional stormwater wetlands and Providing Water Supply and Environmental stream restoration. In addition to the Services for over a Century water quality benefits, these practices provide spaces to allow people to ▪ Aquifer Studies ▪ Groundwater Modeling reconnect with nature which is ▪ Well Siting and Design ▪ Pumping Test Design and particularly important for physical and ▪ Wellhead Protection Analysis mental health an overall improvement ▪ Environmental ▪ Contaminate Remediation in quality of life. Studies have shown Characterization ▪ Risk Assessment that these amenities are needed to attract and retain young professionals  Cedar Rapids | Des Moines  HRGREEN.COM and families providing the workforce Phone 800.728.7805 needed to attract business and industry, new residential development, and economic growth. In other words, TRANSPORTATION + WATER + GOVERNMENTAL SERVICES LAND DEVELOPMENT + ENVIRONMENTAL + CONSTRUCTION if you build it and if you clean it, they will come! n

28 IGWA UnderGround | Summer 2020 outreach links

Live Webcam – www.impact7g.com/projects/live-footage-of-field-of-dreams-watershed-bear-creek-restoration-live-video-link/ Facebook Live Video – www.facebook.com/Impact7g Tours with the Maquoketa River Watershed WMA and the IISC/University of Iowa Student tours – www.facebook.com/MaquoketaRiverWMA/posts/1223007844723174

www.igwa.org 29