US Bridges

Local over South Branch Salt Creek

Good

Tama County, Iowa · 084133102 · Structure no. 000000000318720

Built
1945
80 years old, rebuilt 1979
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
29
2022 count
Owner
County
County Highway Agency

About this bridge

Local over South Branch Salt Creek is a steel stringer/multi-beam or girder carrying Local over South Branch Salt Creek in Tama County, Iowa. It was built in 1945 and reconstructed in 1979, so it is 80 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 29 vehicles a day, projected to reach 29 by 2044. The structure is 60 ft (18.3 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal
CrossesSouth Branch Salt Creek
Location084133102
RouteCounty Highway 0
StateIowa
Coordinates42.0489, -92.41547
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.8 US tons
Inventory rating21.4 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span55 ft (16.8 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2022)
Projected traffic29 by 2044
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over South Branch Salt Creek built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1979.

What condition is Local over South Branch Salt Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Local over South Branch Salt Creek carry?

About 29 vehicles per day (2022 count).

How long is Local over South Branch Salt Creek?

The structure is 60 ft (18.3 m) long with a longest span of 55 ft (16.8 m) and a deck 20 ft wide.

Who owns Local over South Branch Salt Creek?

It is owned by the County Highway Agency.