US Bridges

Old Hwy. 61 South over Whiteoak Bayou

FairPosted for load

Tunica County, Mississippi · Sec 17 T 5S R11W B · Structure no. SA7200000000025

Built
1984
41 years old
Condition
Fair
inspected December 2024
Type
Channel Beam
Concrete
Length
93 ft
3 main spans
Daily traffic
500
2023 count
Owner
County
County Highway Agency

About this bridge

Old Hwy. 61 South over Whiteoak Bayou is a concrete channel beam carrying Old Hwy. 61 South over Whiteoak Bayou in Tunica County, Mississippi. It was built in 1984, so it is 41 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 500 vehicles a day, roughly 15% of them trucks, projected to reach 725 by 2043. The structure is 93 ft (28.3 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesOld Hwy. 61 South
CrossesWhiteoak Bayou
LocationSec 17 T 5S R11W B
RouteCounty Highway 77
Coordinates34.64794, -90.38853
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.3 US tons
Inventory rating9.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span31 ft (9.4 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic725 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Hwy. 61 South over Whiteoak Bayou built?

It was built in 1984, making it 41 years old in 2025.

What condition is Old Hwy. 61 South over Whiteoak Bayou 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 December 2024.

How much traffic does Old Hwy. 61 South over Whiteoak Bayou carry?

About 500 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Old Hwy. 61 South over Whiteoak Bayou?

The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 31 ft wide.

Who owns Old Hwy. 61 South over Whiteoak Bayou?

It is owned by the County Highway Agency.