US Bridges

US 49 over SR 149 & Cnic RR

Good

Simpson County, Mississippi · 2.0 MI N SR 28 · Structure no. 21000490641180B

Built
1965
60 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
260 ft
5 main spans
Daily traffic
12,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 49 over SR 149 & Cnic RR is a prestressed concrete stringer/multi-beam or girder carrying US 49 over SR 149 & Cnic RR in Simpson County, Mississippi. It was built in 1965, so it is 60 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 12,500 vehicles a day, roughly 25% of them trucks, projected to reach 16,500 by 2043. The structure is 260 ft (79.2 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 49
CrossesSR 149 & Cnic RR
Location2.0 MI N SR 28
RouteU.S. Route 49
Coordinates31.88321, -89.76379
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.2 US tons
Inventory rating38.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span52 ft (15.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2023)
Projected traffic16,500 by 2043
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$746 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 49 over SR 149 & Cnic RR built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 49 over SR 149 & Cnic RR 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 May 2023.

How much traffic does US 49 over SR 149 & Cnic RR carry?

About 12,500 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is US 49 over SR 149 & Cnic RR?

The structure is 260 ft (79.2 m) long with a longest span of 52 ft (15.8 m) and a deck 31 ft wide.

Who owns US 49 over SR 149 & Cnic RR?

It is owned by the State Highway Agency.