US Bridges

1st ST SW over Willow Creek

Fair

Cerro Gordo County, Iowa · 000000000 · Structure no. 000000000007980

Built
1966
59 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
1,512
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

1st ST SW over Willow Creek is a concrete continuous slab carrying 1st ST SW over Willow Creek in Cerro Gordo County, Iowa. It was built in 1966, so it is 59 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 1,512 vehicles a day, projected to reach 1,512 by 2044. The structure is 110 ft (33.5 m) long and 52 ft wide.

Location

Open in Google Maps
Carries1st ST SW
CrossesWillow Creek
Location000000000
RouteCity Street 0
CountyCerro Gordo County
StateIowa
Coordinates43.15092, -93.20728
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 protection8 Very GoodNo problems noted.
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.2 US tons
Inventory rating30.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length110 ft (33.5 m)
Longest span43 ft (13.1 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,512 (2022)
Projected traffic1,512 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 1st ST SW over Willow Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is 1st ST SW 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 SW over Willow Creek carry?

About 1,512 vehicles per day (2022 count).

How long is 1st ST SW over Willow Creek?

The structure is 110 ft (33.5 m) long with a longest span of 43 ft (13.1 m) and a deck 52 ft wide.

Who owns 1st ST SW over Willow Creek?

It is owned by the City or Municipal Highway Agency.