US Bridges

SR 8 over Cnic RR Frontage Road

Fair

Grenada County, Mississippi · 0.4 MI E US 51 · Structure no. 310000802207710

Built
1986
39 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
232 ft
3 main spans
Daily traffic
13,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR 8 over Cnic RR Frontage Road is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 8 over Cnic RR Frontage Road in Grenada County, Mississippi. It was built in 1986, so it is 39 years old, older 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 13,000 vehicles a day, roughly 7% of them trucks, projected to reach 13,000 by 2043. The structure is 232 ft (70.7 m) long and 79 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesSR 8
CrossesCnic RR Frontage Road
Location0.4 MI E US 51
RouteState Highway 8
CountyGrenada County
StateMississippi
Coordinates33.7691, -89.80078
Functional classUrban Other Principal Arterial

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 inspectionMay 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span80 ft (24.4 m)
Deck width79 ft (24 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic13,000 by 2043
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed49.7 mi (80 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 8 over Cnic RR Frontage Road built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR 8 over Cnic RR Frontage Road 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 May 2023.

How much traffic does SR 8 over Cnic RR Frontage Road carry?

About 13,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 8 over Cnic RR Frontage Road?

The structure is 232 ft (70.7 m) long with a longest span of 80 ft (24.4 m) and a deck 79 ft wide.

Who owns SR 8 over Cnic RR Frontage Road?

It is owned by the State Highway Agency.