US Bridges

US 84 over Cnic RR

Good

Lawrence County, Mississippi · 0.5 MI E SR 27 · Structure no. 21000840390845A

Built
2006
19 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
200 ft
3 main spans
Daily traffic
2,150
2023 count
Owner
State
State Highway Agency

About this bridge

US 84 over Cnic RR is a prestressed concrete continuous stringer/multi-beam or girder carrying US 84 over Cnic RR in Lawrence County, Mississippi. It was built in 2006, so it is 19 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,150 vehicles a day, roughly 30% of them trucks, projected to reach 2,150 by 2043. The structure is 200 ft (61 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 84
CrossesCnic RR
Location0.5 MI E SR 27
RouteU.S. Route 84
Coordinates31.56848, -90.12104
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.2 US tons
Inventory rating29.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length200 ft (61 m)
Longest span80 ft (24.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,150 (2023)
Projected traffic2,150 by 2043
Trucks30%
Lanes on structure20
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 84 over Cnic RR built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 84 over 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 September 2024.

How much traffic does US 84 over Cnic RR carry?

About 2,150 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is US 84 over Cnic RR?

The structure is 200 ft (61 m) long with a longest span of 80 ft (24.4 m) and a deck 43 ft wide.

Who owns US 84 over Cnic RR?

It is owned by the State Highway Agency.