US Bridges

Old Highway 61 over Little Mound Bayou

Good

Bolivar County, Mississippi · Sec 13 T24N R 6W · Structure no. SA0600000000201

Built
1993
32 years old
Condition
Good
inspected February 2024
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
120
2023 count
Owner
County
County Highway Agency

About this bridge

Old Highway 61 over Little Mound Bayou is a concrete channel beam carrying Old Highway 61 over Little Mound Bayou in Bolivar County, Mississippi. It was built in 1993, so it is 32 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 120 vehicles a day, roughly 8% of them trucks, projected to reach 180 by 2043. The structure is 57 ft (17.4 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Highway 61
CrossesLittle Mound Bayou
LocationSec 13 T24N R 6W
RouteCounty Highway 136
Coordinates33.93052, -90.76777
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating38.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2023)
Projected traffic180 by 2043
Trucks8%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$156,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Highway 61 over Little Mound Bayou built?

It was built in 1993, making it 32 years old in 2025.

What condition is Old Highway 61 over Little Mound 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 February 2024.

How much traffic does Old Highway 61 over Little Mound Bayou carry?

About 120 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Old Highway 61 over Little Mound Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Old Highway 61 over Little Mound Bayou?

It is owned by the County Highway Agency.