US Bridges

US 69 over Fourmile Creek

FairClosed to traffic

Polk County, Iowa · 0.2 Mi. S of SR F22 · Structure no. 000000000040670

Built
1922
103 years old, rebuilt 1948
Condition
Fair
inspected July 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
6,800
2022 count
Owner
State
State Highway Agency

About this bridge

US 69 over Fourmile Creek is a steel stringer/multi-beam or girder carrying US 69 over Fourmile Creek in Polk County, Iowa. It was built in 1922 and reconstructed in 1948, so it is 103 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: closed to all traffic.

It carries about 6,800 vehicles a day, roughly 3% of them trucks, projected to reach 6,800 by 2042. The structure is 63 ft (19.2 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 69
CrossesFourmile Creek
Location0.2 Mi. S of SR F22
RouteU.S. Route 69
StateIowa
Coordinates41.78867, -93.6004
Functional classRural 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2022
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating16.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length63 ft (19.2 m)
Longest span57 ft (17.4 m)
Deck width49 ft (14.9 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,800 (2022)
Projected traffic6,800 by 2042
Trucks3%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 69 over Fourmile Creek built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1948.

What condition is US 69 over Fourmile 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 July 2022.

How much traffic does US 69 over Fourmile Creek carry?

About 6,800 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is US 69 over Fourmile Creek?

The structure is 63 ft (19.2 m) long with a longest span of 57 ft (17.4 m) and a deck 49 ft wide.

Who owns US 69 over Fourmile Creek?

It is owned by the State Highway Agency.