US Bridges

Co. Road 3122 over Bch of Big Black River

Good

Attala County, Mississippi · Sec 2 T15N R 5E B · Structure no. SA0400000000094

Built
1985
40 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
80
2024 count
Owner
County
County Highway Agency

About this bridge

Co. Road 3122 over Bch of Big Black River is a concrete culvert carrying Co. Road 3122 over Bch of Big Black River in Attala County, Mississippi. It was built in 1985, so it is 40 years old, older 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 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 80 vehicles a day, roughly 8% of them trucks, projected to reach 120 by 2044. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesCo. Road 3122
CrossesBch of Big Black River
LocationSec 2 T15N R 5E B
RouteCounty Highway 661
Coordinates33.18806, -89.75472
Functional classRural Major Collector

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.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2024)
Projected traffic120 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$450,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Road 3122 over Bch of Big Black River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Co. Road 3122 over Bch of Big Black River 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 Co. Road 3122 over Bch of Big Black River carry?

About 80 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Co. Road 3122 over Bch of Big Black River?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns Co. Road 3122 over Bch of Big Black River?

It is owned by the County Highway Agency.