US Bridges

Grand Marais Road over Gum Gully

Good

Jefferson Davis Parish, Louisiana · 1.2 MI W of LA 395 · Structure no. 072730183924571

Built
1987
38 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
31 ft
4 main spans
Daily traffic
50
2019 count
Owner
County
County Highway Agency

About this bridge

Grand Marais Road over Gum Gully is a concrete culvert carrying Grand Marais Road over Gum Gully in Jefferson Davis 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 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 50 vehicles a day, projected to reach 55 by 2039. The structure is 31 ft (9.4 m) long and 29 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesGrand Marais Road
CrossesGum Gully
Location1.2 MI W of LA 395
RouteCounty Highway 0
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.30556, -92.76164
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span8 ft (2.4 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2019)
Projected traffic55 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Grand Marais Road over Gum Gully built?

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

What condition is Grand Marais Road over Gum Gully 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 July 2024.

How much traffic does Grand Marais Road over Gum Gully carry?

About 50 vehicles per day (2019 count).

How long is Grand Marais Road over Gum Gully?

The structure is 31 ft (9.4 m) long with a longest span of 8 ft (2.4 m) and a deck 29 ft wide.

Who owns Grand Marais Road over Gum Gully?

It is owned by the County Highway Agency.