US Bridges

Mounce Road over Trib to Grand Cane Bayou

Good

De Soto Parish, Louisiana · 3 MI SW of US 171 · Structure no. 041600000041603

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
225
2021 count
Owner
County
County Highway Agency

About this bridge

Mounce Road over Trib to Grand Cane Bayou is a concrete culvert carrying Mounce Road over Trib to Grand Cane Bayou in De Soto Parish, Louisiana. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 225 vehicles a day, projected to reach 247 by 2041. The structure is 24 ft (7.3 m) long and 58 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMounce Road
CrossesTrib to Grand Cane Bayou
Location3 MI SW of US 171
RouteCounty Highway 0
Coordinates32.04976, -93.82132
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 spans3
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span7 ft (2.1 m)
Deck width58 ft (17.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2021)
Projected traffic247 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Mounce Road over Trib to Grand Cane Bayou built?

It was built in 2020, making it 5 years old in 2025.

What condition is Mounce Road over Trib to Grand Cane Bayou 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 October 2024.

How much traffic does Mounce Road over Trib to Grand Cane Bayou carry?

About 225 vehicles per day (2021 count).

How long is Mounce Road over Trib to Grand Cane Bayou?

The structure is 24 ft (7.3 m) long with a longest span of 7 ft (2.1 m) and a deck 58 ft wide.

Who owns Mounce Road over Trib to Grand Cane Bayou?

It is owned by the County Highway Agency.