US Bridges

Iron Bridge RD over Leatherman Creek

Good

Bienville Parish, Louisiana · 1.2 MI W of LA 157 · Structure no. 040700000301179

Built
2013
12 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

Iron Bridge RD over Leatherman Creek is a concrete slab carrying Iron Bridge RD over Leatherman Creek in Bienville Parish, Louisiana. It was built in 2013, so it is 12 years old, younger than the Louisiana average of 43 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 80 vehicles a day, projected to reach 88 by 2040. The structure is 80 ft (24.4 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIron Bridge RD
CrossesLeatherman Creek
Location1.2 MI W of LA 157
RouteCounty Highway 0
Coordinates32.58345, -93.07325
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic88 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Iron Bridge RD over Leatherman Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Iron Bridge RD over Leatherman 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 May 2023.

How much traffic does Iron Bridge RD over Leatherman Creek carry?

About 80 vehicles per day (2020 count).

How long is Iron Bridge RD over Leatherman Creek?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Iron Bridge RD over Leatherman Creek?

It is owned by the County Highway Agency.