US Bridges

Old 51 South over Small Drain

Fair

Pike County, Mississippi · SEC_12_T 1N_R 7E B · Structure no. SA570000000A010

Built
2013
12 years old
Condition
Fair
inspected February 2024
Type
Channel Beam
Concrete
Length
38 ft
2 main spans
Daily traffic
115
2021 count
Owner
County
County Highway Agency

About this bridge

Old 51 South over Small Drain is a concrete channel beam carrying Old 51 South over Small Drain in Pike County, Mississippi. It was built in 2013, so it is 12 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 115 vehicles a day, roughly 8% of them trucks, projected to reach 150 by 2043. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOld 51 South
CrossesSmall Drain
LocationSEC_12_T 1N_R 7E B
RouteCounty Highway 89
Coordinates31.06006, -90.46314
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 15
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2021)
Projected traffic150 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$294,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old 51 South over Small Drain built?

It was built in 2013, making it 12 years old in 2025.

What condition is Old 51 South over Small Drain 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 February 2024.

How much traffic does Old 51 South over Small Drain carry?

About 115 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Old 51 South over Small Drain?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Old 51 South over Small Drain?

It is owned by the County Highway Agency.