US Bridges

US 45 over KCS RR

Good

Lauderdale County, Mississippi · 3.3 MI N I 59 · Structure no. 21000450380788A

Built
1973
52 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
243 ft
1 main span
Daily traffic
5,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over KCS RR is a prestressed concrete stringer/multi-beam or girder carrying US 45 over KCS RR in Lauderdale County, Mississippi. It was built in 1973, so it is 52 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 5,500 vehicles a day, roughly 14% of them trucks, projected to reach 6,500 by 2043. The structure is 243 ft (74.1 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 45
CrossesKCS RR
Location3.3 MI N I 59
RouteU.S. Route 45
CountyLauderdale County
StateMississippi
Coordinates32.43007, -88.63982
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadHS 20
Structure length243 ft (74.1 m)
Longest span80 ft (24.4 m)
Deck width50 ft (15.2 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic6,500 by 2043
Trucks14%
Lanes on structure3
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 45 over KCS RR built?

It was built in 1973, making it 52 years old in 2025.

What condition is US 45 over KCS 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 March 2023.

How much traffic does US 45 over KCS RR carry?

About 5,500 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US 45 over KCS RR?

The structure is 243 ft (74.1 m) long with a longest span of 80 ft (24.4 m) and a deck 50 ft wide.

Who owns US 45 over KCS RR?

It is owned by the State Highway Agency.