US Bridges

FM over Stephens Creek

Poor

Plymouth County, Iowa · 090481506 · Structure no. 000000000272021

Built
1960
65 years old, rebuilt 1980
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
102 ft
3 main spans
Daily traffic
628
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Stephens Creek is a steel stringer/multi-beam or girder carrying FM over Stephens Creek in Plymouth County, Iowa. It was built in 1960 and reconstructed in 1980, so it is 65 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 4 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.

It carries about 628 vehicles a day, roughly 12% of them trucks, projected to reach 628 by 2044. The structure is 102 ft (31.1 m) long and 32 ft wide.

CarriesFM
CrossesStephens Creek
Location090481506
RouteCounty Highway 0
StateIowa
Coordinates42.6119, -96.49484
Functional classRural Major Collector

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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.2 US tons
Inventory rating48.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span34 ft (10.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic628 (2022)
Projected traffic628 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Stephens Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1980.

What condition is FM over Stephens 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 June 2024.

How much traffic does FM over Stephens Creek carry?

About 628 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is FM over Stephens Creek?

The structure is 102 ft (31.1 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.

Who owns FM over Stephens Creek?

It is owned by the County Highway Agency.