US Bridges

Smith Co. 99 over West Tallahala Creek

Good

Smith County, Mississippi · Sec 33 T 2N R 9E B · Structure no. SA6500000000054

Built
1972
53 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
279 ft
600 main spans
Daily traffic
310
2022 count
Owner
County
County Highway Agency

About this bridge

Smith Co. 99 over West Tallahala Creek is a prestressed concrete stringer/multi-beam or girder carrying Smith Co. 99 over West Tallahala Creek in Smith County, Mississippi. It was built in 1972, so it is 53 years old, older 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 310 vehicles a day, roughly 30% of them trucks, projected to reach 465 by 2043. The structure is 279 ft (85 m) long and 30 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesSmith Co. 99
CrossesWest Tallahala Creek
LocationSec 33 T 2N R 9E B
RouteCounty Highway 334
Coordinates31.96663, -89.38831
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating30.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans600
Design loadHS 15
Structure length279 ft (85 m)
Longest span79 ft (24 m)
Deck width30 ft (9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2022)
Projected traffic465 by 2043
Trucks30%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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$2.1 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Smith Co. 99 over West Tallahala Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Smith Co. 99 over West Tallahala Creek 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 September 2023.

How much traffic does Smith Co. 99 over West Tallahala Creek carry?

About 310 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is Smith Co. 99 over West Tallahala Creek?

The structure is 279 ft (85 m) long with a longest span of 79 ft (24 m) and a deck 30 ft wide.

Who owns Smith Co. 99 over West Tallahala Creek?

It is owned by the County Highway Agency.