US Bridges

Cemetary RD over Mammouth Bayou

Good

Adams County, Mississippi · Sec 1 T 7N R 3W B · Structure no. SA0100000000058

Built
1990
35 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Cemetary RD over Mammouth Bayou is a concrete culvert carrying Cemetary RD over Mammouth Bayou in Adams County, Mississippi. It was built in 1990, so it is 35 years old, younger than the Mississippi average of 38.9 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, roughly 8% of them trucks, projected to reach 75 by 2043. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCemetary RD
CrossesMammouth Bayou
LocationSec 1 T 7N R 3W B
RouteCounty Highway 781
Coordinates31.60831, -91.37474
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Cemetary RD over Mammouth Bayou built?

It was built in 1990, making it 35 years old in 2025.

What condition is Cemetary RD over Mammouth 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 April 2024.

How much traffic does Cemetary RD over Mammouth Bayou carry?

About 50 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Cemetary RD over Mammouth Bayou?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m).

Who owns Cemetary RD over Mammouth Bayou?

It is owned by the County Highway Agency.