US Bridges

US 45 over KCS RR

Fair

Alcorn County, Mississippi · 3.1 MI N US 72 · Structure no. 21000450022776B

Built
1965
60 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
404 ft
4 main spans
Daily traffic
5,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over KCS RR is a steel stringer/multi-beam or girder carrying US 45 over KCS RR in Alcorn County, Mississippi. It was built in 1965, so it is 60 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 5,500 vehicles a day, roughly 24% of them trucks, projected to reach 6,000 by 2043. The structure is 404 ft (123 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 45
CrossesKCS RR
Location3.1 MI N US 72
RouteU.S. Route 45
CountyAlcorn County
StateMississippi
Coordinates34.97307, -88.52812
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating29.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+4 approach)
Design loadHS 20
Structure length404 ft (123 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic6,000 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 45 over KCS RR built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 45 over KCS 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 45 over KCS RR carry?

About 5,500 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US 45 over KCS RR?

The structure is 404 ft (123 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns US 45 over KCS RR?

It is owned by the State Highway Agency.