US Bridges

Green Moore RD over Dynamite Slough

Fair

Calcasieu Parish, Louisiana · 0.9 MI West of LA 109 · Structure no. 071030156933931

Built
1987
38 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
248
2021 count
Owner
County
County Highway Agency

About this bridge

Green Moore RD over Dynamite Slough is a concrete culvert carrying Green Moore RD over Dynamite Slough in Calcasieu Parish, Louisiana. It was built in 1987, so it is 38 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 248 vehicles a day, projected to reach 272 by 2041. The structure is 22 ft (6.7 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGreen Moore RD
CrossesDynamite Slough
Location0.9 MI West of LA 109
RouteCounty Highway 0
CountyCalcasieu Parish
StateLouisiana
Coordinates30.25964, -93.65817
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width34 ft (10.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic248 (2021)
Projected traffic272 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Green Moore RD over Dynamite Slough built?

It was built in 1987, making it 38 years old in 2025.

What condition is Green Moore RD over Dynamite Slough 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 June 2023.

How much traffic does Green Moore RD over Dynamite Slough carry?

About 248 vehicles per day (2021 count).

How long is Green Moore RD over Dynamite Slough?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns Green Moore RD over Dynamite Slough?

It is owned by the County Highway Agency.