US Bridges

US 51 over Cnic RR

Fair

Yazoo County, Mississippi · 0.3 MI S SR 432 · Structure no. 210005108214020

Built
2008
17 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
473 ft
2 main spans
Daily traffic
930
2023 count
Owner
State
State Highway Agency

About this bridge

US 51 over Cnic RR is a prestressed concrete stringer/multi-beam or girder carrying US 51 over Cnic RR in Yazoo County, Mississippi. It was built in 2008, so it is 17 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 930 vehicles a day, roughly 11% of them trucks, projected to reach 930 by 2043. The structure is 473 ft (144.1 m) long and 47 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

Location

Open in Google Maps
CarriesUS 51
CrossesCnic RR
Location0.3 MI S SR 432
RouteU.S. Route 51
CountyYazoo County
StateMississippi
Coordinates32.87737, -89.97713
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadHS 20
Structure length473 ft (144.1 m)
Longest span110 ft (33.5 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic930 (2023)
Projected traffic930 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed29.2 mi (47 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 51 over Cnic RR built?

It was built in 2008, making it 17 years old in 2025.

What condition is US 51 over Cnic RR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does US 51 over Cnic RR carry?

About 930 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 51 over Cnic RR?

The structure is 473 ft (144.1 m) long with a longest span of 110 ft (33.5 m) and a deck 47 ft wide.

Who owns US 51 over Cnic RR?

It is owned by the State Highway Agency.