US Bridges

1st ST NW over Willow Creek

Fair

Cerro Gordo County, Iowa · 000000000 · Structure no. 000000000008011

Built
1978
47 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
7,043
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

1st ST NW over Willow Creek is a concrete continuous slab carrying 1st ST NW over Willow Creek in Cerro Gordo County, Iowa. It was built in 1978, so it is 47 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,043 vehicles a day, projected to reach 7,043 by 2044. The structure is 128 ft (39 m) long and 46 ft wide.

Location

Open in Google Maps
Carries1st ST NW
CrossesWillow Creek
Location000000000
RouteCity Street 0
CountyCerro Gordo County
StateIowa
Coordinates43.15275, -93.21332
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.9 US tons
Inventory rating37.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width46 ft (14.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,043 (2022)
Projected traffic7,043 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$650,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1st ST NW over Willow Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is 1st ST NW over Willow Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does 1st ST NW over Willow Creek carry?

About 7,043 vehicles per day (2022 count).

How long is 1st ST NW over Willow Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 46 ft wide.

Who owns 1st ST NW over Willow Creek?

It is owned by the City or Municipal Highway Agency.