US Bridges

D38 (220th St) over Big Creek

Good

Woodbury County, Iowa · 088433405 · Structure no. 000000000353372

Built
2011
14 years old
Condition
Good
inspected June 2022
Type
Slab
Concrete Continuous
Length
151 ft
3 main spans
Daily traffic
369
2022 count
Owner
County
County Highway Agency

About this bridge

D38 (220th St) over Big Creek is a concrete continuous slab carrying D38 (220th St) over Big Creek in Woodbury County, Iowa. It was built in 2011, so it is 14 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 369 vehicles a day, roughly 22% of them trucks, projected to reach 369 by 2043. The structure is 151 ft (46 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesD38 (220th St)
CrossesBig Creek
Location088433405
RouteCounty Highway 0
CountyWoodbury County
StateIowa
Coordinates42.38897, -95.83435
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length151 ft (46 m)
Longest span59 ft (18 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic369 (2022)
Projected traffic369 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was D38 (220th St) over Big Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is D38 (220th St) over Big Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2022.

How much traffic does D38 (220th St) over Big Creek carry?

About 369 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is D38 (220th St) over Big Creek?

The structure is 151 ft (46 m) long with a longest span of 59 ft (18 m) and a deck 33 ft wide.

Who owns D38 (220th St) over Big Creek?

It is owned by the County Highway Agency.