US Bridges

Herring School Rd. over Relief

Fair

Montgomery County, Mississippi · Sec 15 T18N R 6E B · Structure no. SA4900000000036

Built
1991
34 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

Herring School Rd. over Relief is a concrete slab carrying Herring School Rd. over Relief in Montgomery 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 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 60 vehicles a day, roughly 8% of them trucks, projected to reach 90 by 2030. The structure is 76 ft (23.2 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesHerring School Rd.
CrossesRelief
LocationSec 15 T18N R 6E B
RouteCounty Highway 83
CountyMontgomery County
StateMississippi
Coordinates33.41667, -89.64611
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic90 by 2030
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$863,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Herring School Rd. over Relief built?

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

What condition is Herring School Rd. over Relief 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 April 2023.

How much traffic does Herring School Rd. over Relief carry?

About 60 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Herring School Rd. over Relief?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 24 ft wide.

Who owns Herring School Rd. over Relief?

It is owned by the County Highway Agency.