US Bridges

US 84 over Cnic RR

Good

Franklin County, Mississippi · 1.6 MI E Adams Cl · Structure no. 21000840190199A

Built
1987
38 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
223 ft
1 main span
Daily traffic
2,150
2023 count
Owner
State
State Highway Agency

About this bridge

US 84 over Cnic RR is a prestressed concrete stringer/multi-beam or girder carrying US 84 over Cnic RR in Franklin County, Mississippi. It was built in 1987, so it is 38 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 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 2,150 vehicles a day, roughly 24% of them trucks, projected to reach 2,150 by 2043. The structure is 223 ft (68 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 84
CrossesCnic RR
Location1.6 MI E Adams Cl
RouteU.S. Route 84
Coordinates31.5417, -91.12881
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating31.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length223 ft (68 m)
Longest span90 ft (27.4 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,150 (2023)
Projected traffic2,150 by 2043
Trucks24%
Lanes on structure2
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 1987, making it 38 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 May 2024.

How much traffic does US 84 over Cnic RR carry?

About 2,150 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US 84 over Cnic RR?

The structure is 223 ft (68 m) long with a longest span of 90 ft (27.4 m) and a deck 45 ft wide.

Who owns US 84 over Cnic RR?

It is owned by the State Highway Agency.