US Bridges

Hamp Lea Road over Relief Tangipahoa River

FairPosted for load

Pike County, Mississippi · Sec 22 T 2N R 7E B · Structure no. SA5700000000063

Built
1977
48 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
340
2021 count
Owner
County
County Highway Agency

About this bridge

Hamp Lea Road over Relief Tangipahoa River is a concrete slab carrying Hamp Lea Road over Relief Tangipahoa River in Pike County, Mississippi. It was built in 1977, so it is 48 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 340 vehicles a day, roughly 7% of them trucks, projected to reach 985 by 2043. The structure is 114 ft (34.7 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHamp Lea Road
CrossesRelief Tangipahoa River
LocationSec 22 T 2N R 7E B
RouteCounty Highway 164
CountyPike County
StateMississippi
Coordinates31.12753, -90.49322
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.3 US tons
Inventory rating17.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2021)
Projected traffic985 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$801,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hamp Lea Road over Relief Tangipahoa River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Hamp Lea Road over Relief Tangipahoa River 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 Hamp Lea Road over Relief Tangipahoa River carry?

About 340 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Hamp Lea Road over Relief Tangipahoa River?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Hamp Lea Road over Relief Tangipahoa River?

It is owned by the County Highway Agency.