US Bridges

US 45 over Porterville Road/Kcs RR

Good

Kemper County, Mississippi · 3.1 MI N SR 498 · Structure no. 21000450351038B

Built
1986
39 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
303 ft
1 main span
Daily traffic
2,700
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over Porterville Road/Kcs RR is a prestressed concrete stringer/multi-beam or girder carrying US 45 over Porterville Road/Kcs RR in Kemper County, Mississippi. It was built in 1986, so it is 39 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 2,700 vehicles a day, roughly 28% of them trucks, projected to reach 3,400 by 2043. The structure is 303 ft (92.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 45
CrossesPorterville Road/Kcs RR
Location3.1 MI N SR 498
RouteU.S. Route 45
CountyKemper County
StateMississippi
Coordinates32.72792, -88.47229
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span90 ft (27.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2023)
Projected traffic3,400 by 2043
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 Porterville Road/Kcs RR built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 45 over Porterville Road/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 August 2023.

How much traffic does US 45 over Porterville Road/Kcs RR carry?

About 2,700 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is US 45 over Porterville Road/Kcs RR?

The structure is 303 ft (92.4 m) long with a longest span of 90 ft (27.4 m) and a deck 43 ft wide.

Who owns US 45 over Porterville Road/Kcs RR?

It is owned by the State Highway Agency.