US Bridges

Harrisonburg over Nantaches Creek

PoorPosted for load

Winn Parish, Louisiana · 3.84 Mi. East of US 71 · Structure no. 086431456925281

Built
1979
46 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete
Length
96 ft
5 main spans
Daily traffic
179
2022 count
Owner
County
County Highway Agency

About this bridge

Harrisonburg over Nantaches Creek is a concrete slab carrying Harrisonburg over Nantaches Creek in Winn Parish, Louisiana. It was built in 1979, so it is 46 years old, older than the Louisiana average of 43 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 179 vehicles a day, projected to reach 196 by 2042. The structure is 96 ft (29.3 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesHarrisonburg
CrossesNantaches Creek
Location3.84 Mi. East of US 71
RouteCounty Highway 0
Coordinates31.75952, -92.8777
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating38.3 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179 (2022)
Projected traffic196 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$334,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrisonburg over Nantaches Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Harrisonburg over Nantaches 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 2024.

How much traffic does Harrisonburg over Nantaches Creek carry?

About 179 vehicles per day (2022 count).

How long is Harrisonburg over Nantaches Creek?

The structure is 96 ft (29.3 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Harrisonburg over Nantaches Creek?

It is owned by the County Highway Agency.