US Bridges

Local over Steel Creek

PoorPosted for load

Decatur County, Iowa · 068242303 · Structure no. 000000000136911

Built
1927
98 years old, rebuilt 1986
Condition
Poor
inspected December 2023
Type
Truss - Thru
Steel
Length
135 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Steel Creek is a steel truss - thru carrying Local over Steel Creek in Decatur County, Iowa. It was built in 1927 and reconstructed in 1986, so it is 98 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. Its operating status is: posted for load restriction.

It carries about 11 vehicles a day, roughly 27% of them trucks, projected to reach 11 by 2043. The structure is 135 ft (41.1 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLocal
CrossesSteel Creek
Location068242303
RouteCounty Highway 0
StateIowa
Coordinates40.67409, -93.58672
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28 US tons
Inventory rating8.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length135 ft (41.1 m)
Longest span130 ft (39.6 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deck13 ft (4 m)

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2043
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Steel Creek built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1986.

What condition is Local over Steel 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 December 2023.

How much traffic does Local over Steel Creek carry?

About 11 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is Local over Steel Creek?

The structure is 135 ft (41.1 m) long with a longest span of 130 ft (39.6 m) and a deck 21 ft wide.

Who owns Local over Steel Creek?

It is owned by the County Highway Agency.