US Bridges

US 45 over Parmicha Relief

Good

Alcorn County, Mississippi · 4.4 MI N Prentiss Cl · Structure no. 21000450022665B

Built
1991
34 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
92 ft
3 main spans
Daily traffic
8,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over Parmicha Relief is a prestressed concrete continuous stringer/multi-beam or girder carrying US 45 over Parmicha Relief in Alcorn County, Mississippi. It was built in 1991, so it is 34 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 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 8,000 vehicles a day, roughly 15% of them trucks, projected to reach 8,500 by 2043. The structure is 92 ft (28 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 45
CrossesParmicha Relief
Location4.4 MI N Prentiss Cl
RouteU.S. Route 45
CountyAlcorn County
StateMississippi
Coordinates34.81903, -88.55918
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating46.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length92 ft (28 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2023)
Projected traffic8,500 by 2043
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 45 over Parmicha Relief built?

It was built in 1991, making it 34 years old in 2025.

What condition is US 45 over Parmicha Relief 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 July 2023.

How much traffic does US 45 over Parmicha Relief carry?

About 8,000 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US 45 over Parmicha Relief?

The structure is 92 ft (28 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns US 45 over Parmicha Relief?

It is owned by the State Highway Agency.