US Bridges

FM over Short Creek

PoorPosted for load

Decatur County, Iowa · 070263206 · Structure no. 000000000138951

Built
1929
96 years old, rebuilt 1975
Condition
Poor
inspected November 2023
Type
Girder and Floorbeam System
Steel
Length
73 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Short Creek is a steel girder and floorbeam system carrying FM over Short Creek in Decatur County, Iowa. It was built in 1929 and reconstructed in 1975, so it is 96 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 load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2043. The structure is 73 ft (22.3 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesShort Creek
Location070263206
RouteCounty Highway 0
StateIowa
Coordinates40.82309, -93.87121
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionNovember 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating22.2 US tons
Inventory rating13.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length73 ft (22.3 m)
Longest span70 ft (21.3 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2043
Trucks0%
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

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$990,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Short Creek built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1975.

What condition is FM over Short 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 November 2023.

How much traffic does FM over Short Creek carry?

About 15 vehicles per day (2022 count).

How long is FM over Short Creek?

The structure is 73 ft (22.3 m) long with a longest span of 70 ft (21.3 m) and a deck 25 ft wide.

Who owns FM over Short Creek?

It is owned by the County Highway Agency.