US Bridges

LA0027 over Crab Gully

Poor

Cameron Parish, Louisiana · 4.5 MI N of LA 390 · Structure no. 071200310305701

Built
1957
68 years old, rebuilt 2018
Condition
Poor
inspected February 2023
Type
Culvert
Concrete
Length
50 ft
9 main spans
Daily traffic
3,884
2021 count
Owner
State
State Highway Agency

About this bridge

LA0027 over Crab Gully is a concrete culvert carrying LA0027 over Crab Gully in Cameron Parish, Louisiana. It was built in 1957 and reconstructed in 2018, so it is 68 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.

It carries about 3,884 vehicles a day, roughly 18% of them trucks, projected to reach 4,272 by 2041. The structure is 50 ft (15.2 m) long and 63 ft wide. If it were closed, the detour would be 82 mi (132 km).

Location

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CarriesLA0027
CrossesCrab Gully
Location4.5 MI N of LA 390
RouteState Highway 27
CountyCameron Parish
StateLouisiana
Coordinates30.03469, -93.33937
Functional classRural Minor Arterial

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
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans9
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span5 ft (1.5 m)
Deck width63 ft (19.2 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,884 (2021)
Projected traffic4,272 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed82 mi (132 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$288,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0027 over Crab Gully built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2018.

What condition is LA0027 over Crab Gully 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 February 2023.

How much traffic does LA0027 over Crab Gully carry?

About 3,884 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is LA0027 over Crab Gully?

The structure is 50 ft (15.2 m) long with a longest span of 5 ft (1.5 m) and a deck 63 ft wide.

Who owns LA0027 over Crab Gully?

It is owned by the State Highway Agency.