US Bridges

Center ST over Willow Creek

Good

Carroll County, Iowa · 700 S. of Ia 141 · Structure no. 000000000007621

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
1,676
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Center ST over Willow Creek is a concrete continuous slab carrying Center ST over Willow Creek in Carroll County, Iowa. It was built in 2020, so it is 5 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 1,676 vehicles a day, roughly 3% of them trucks, projected to reach 1,676 by 2044. The structure is 90 ft (27.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCenter ST
CrossesWillow Creek
Location700 S. of Ia 141
RouteCity Street 0
CountyCarroll County
StateIowa
Coordinates41.90436, -95.06371
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length90 ft (27.4 m)
Longest span35 ft (10.7 m)
Deck width43 ft (13.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,676 (2022)
Projected traffic1,676 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Center ST over Willow Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Center ST over Willow 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 April 2024.

How much traffic does Center ST over Willow Creek carry?

About 1,676 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Center ST over Willow Creek?

The structure is 90 ft (27.4 m) long with a longest span of 35 ft (10.7 m) and a deck 43 ft wide.

Who owns Center ST over Willow Creek?

It is owned by the City or Municipal Highway Agency.