US Bridges

Michigan Ave over Big Wright Creek

Good

Woodbury County, Iowa · 088433406 · Structure no. 000000000353361

Built
2014
11 years old
Condition
Good
inspected June 2022
Type
Slab
Concrete
Length
149 ft
3 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Michigan Ave over Big Wright Creek is a concrete slab carrying Michigan Ave over Big Wright Creek in Woodbury County, Iowa. It was built in 2014, so it is 11 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 11 vehicles a day, projected to reach 11 by 2043. The structure is 149 ft (45.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMichigan Ave
CrossesBig Wright Creek
Location088433406
RouteCounty Highway 0
CountyWoodbury County
StateIowa
Coordinates42.38707, -95.83522
Functional classRural Local

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 above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length149 ft (45.4 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Michigan Ave over Big Wright Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Michigan Ave over Big Wright 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 Michigan Ave over Big Wright Creek carry?

About 11 vehicles per day (2022 count).

How long is Michigan Ave over Big Wright Creek?

The structure is 149 ft (45.4 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns Michigan Ave over Big Wright Creek?

It is owned by the County Highway Agency.