US Bridges

Parish Line RD over Flat Creek

Good

Beauregard Parish, Louisiana · 0.7 MI N of Ampacet Dr. · Structure no. 070600000500524

Built
2014
11 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
590
2019 count
Owner
County
County Highway Agency

About this bridge

Parish Line RD over Flat Creek is a concrete slab carrying Parish Line RD over Flat Creek in Beauregard Parish, Louisiana. It was built in 2014, so it is 11 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 590 vehicles a day, projected to reach 649 by 2039. The structure is 140 ft (42.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesParish Line RD
CrossesFlat Creek
Location0.7 MI N of Ampacet Dr.
RouteCounty Highway 0
Coordinates30.87893, -93.27655
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 rating63.6 US tons
Inventory rating48.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2019)
Projected traffic649 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Parish Line RD over Flat Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Parish Line RD over Flat 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 January 2024.

How much traffic does Parish Line RD over Flat Creek carry?

About 590 vehicles per day (2019 count).

How long is Parish Line RD over Flat Creek?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Parish Line RD over Flat Creek?

It is owned by the County Highway Agency.