US Bridges

E-W 7th Ave N over Willow Creek

PoorPosted for load

Cerro Gordo County, Iowa · 092210900 · Structure no. 000000000106330

Built
1900
125 years old
Condition
Poor
inspected March 2024
Type
Arch - Deck
Concrete
Length
46 ft
1 main span
Daily traffic
26
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

E-W 7th Ave N over Willow Creek is a concrete arch - deck carrying E-W 7th Ave N over Willow Creek in Cerro Gordo County, Iowa. It was built in 1900, so it is 125 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 26 vehicles a day, roughly 31% of them trucks, projected to reach 26 by 2044. The structure is 46 ft (14 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE-W 7th Ave N
CrossesWillow Creek
Location092210900
RouteCity Street 0
StateIowa
Coordinates43.14126, -93.32165
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.6 US tons
Inventory rating26.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span45 ft (13.7 m)
Deck width19 ft (5.8 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 by 2044
Trucks31%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was E-W 7th Ave N over Willow Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is E-W 7th Ave N over Willow Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does E-W 7th Ave N over Willow Creek carry?

About 26 vehicles per day (2022 count), of which roughly 31% are trucks.

How long is E-W 7th Ave N over Willow Creek?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 19 ft wide.

Who owns E-W 7th Ave N over Willow Creek?

It is owned by the City or Municipal Highway Agency.