US Bridges

Local over Salt Creek

Poor

Tama County, Iowa · 085143002 · Structure no. 000000000319740

Built
1910
115 years old, rebuilt 2012
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Salt Creek is a steel stringer/multi-beam or girder carrying Local over Salt Creek in Tama County, Iowa. It was built in 1910 and reconstructed in 2012, so it is 115 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 15 vehicles a day, projected to reach 15 by 2044. The structure is 52 ft (15.9 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal
CrossesSalt Creek
Location085143002
RouteCounty Highway 0
CountyTama County
StateIowa
Coordinates42.14701, -92.53296
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30.8 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckAluminum
Main spans1
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span50 ft (15.2 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Salt Creek built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 2012.

What condition is Local over Salt 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 September 2024.

How much traffic does Local over Salt Creek carry?

About 15 vehicles per day (2022 count).

How long is Local over Salt Creek?

The structure is 52 ft (15.9 m) long with a longest span of 50 ft (15.2 m) and a deck 18 ft wide.

Who owns Local over Salt Creek?

It is owned by the County Highway Agency.