US Bridges

Co. Road 3122 over Bch of Zilpha Creek

Good

Attala County, Mississippi · Sec 15 T16N R 6E B · Structure no. SA0400000000135

Built
1955
70 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
110
2024 count
Owner
County
County Highway Agency

About this bridge

Co. Road 3122 over Bch of Zilpha Creek is a concrete culvert carrying Co. Road 3122 over Bch of Zilpha Creek in Attala County, Mississippi. It was built in 1955, so it is 70 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 110 vehicles a day, roughly 8% of them trucks, projected to reach 165 by 2044. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCo. Road 3122
CrossesBch of Zilpha Creek
LocationSec 15 T16N R 6E B
RouteCounty Highway 661
Coordinates33.24871, -89.66508
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length26 ft (7.9 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 traffic110 (2024)
Projected traffic165 by 2044
Trucks8%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$450,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Road 3122 over Bch of Zilpha Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Co. Road 3122 over Bch of Zilpha Creek 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 Zilpha Creek carry?

About 110 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Co. Road 3122 over Bch of Zilpha Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Co. Road 3122 over Bch of Zilpha Creek?

It is owned by the County Highway Agency.