US Bridges

Liberty Chapel RD over Black Creek

Fair

Grant Parish, Louisiana · 0.5 M. N. of Jct. LA 122 · Structure no. 082231371923621

Built
1985
40 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
171 ft
9 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

Liberty Chapel RD over Black Creek is a concrete slab carrying Liberty Chapel RD over Black Creek in Grant Parish, Louisiana. It was built in 1985, so it is 40 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 45 vehicles a day, projected to reach 49 by 2042. The structure is 171 ft (52.1 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLiberty Chapel RD
CrossesBlack Creek
Location0.5 M. N. of Jct. LA 122
RouteCounty Highway 0
CountyGrant Parish
StateLouisiana
Coordinates31.61934, -92.6033
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic49 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Liberty Chapel RD over Black Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Liberty Chapel RD over Black Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Liberty Chapel RD over Black Creek carry?

About 45 vehicles per day (2022 count).

How long is Liberty Chapel RD over Black Creek?

The structure is 171 ft (52.1 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Liberty Chapel RD over Black Creek?

It is owned by the County Highway Agency.