US Bridges

US 84 over Cnic RR

Good

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

Built
1960
65 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
198 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 steel stringer/multi-beam or girder carrying US 84 over Cnic RR in Franklin County, Mississippi. It was built in 1960, so it is 65 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 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 24% of them trucks, projected to reach 2,150 by 2043. The structure is 198 ft (60.4 m) long and 31 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
Coordinates31.54183, -91.13003
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.9 US tons
Inventory rating51.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length198 ft (60.4 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 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 1960, making it 65 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 198 ft (60.4 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns US 84 over Cnic RR?

It is owned by the State Highway Agency.