US Bridges

Tanner Williams RD over Flat Creek

Good

Jackson County, Mississippi · Sec 12 T 4S R 5W B · Structure no. SA3000000000007

Built
2004
21 years old
Condition
Good
inspected November 2024
Type
Channel Beam
Concrete
Length
154 ft
5 main spans
Daily traffic
1,000
2024 count
Owner
County
County Highway Agency

About this bridge

Tanner Williams RD over Flat Creek is a concrete channel beam carrying Tanner Williams RD over Flat Creek in Jackson County, Mississippi. It was built in 2004, so it is 21 years old, younger 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 1,000 vehicles a day, roughly 10% of them trucks, projected to reach 1,800 by 2044. The structure is 154 ft (47 m) long and 31 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesTanner Williams RD
CrossesFlat Creek
LocationSec 12 T 4S R 5W B
RouteCounty Highway 8788
Coordinates30.72028, -88.44111
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.6 US tons
Inventory rating41.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length154 ft (47 m)
Longest span31 ft (9.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2024)
Projected traffic1,800 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Tanner Williams RD over Flat Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Tanner Williams RD over Flat 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 November 2024.

How much traffic does Tanner Williams RD over Flat Creek carry?

About 1,000 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Tanner Williams RD over Flat Creek?

The structure is 154 ft (47 m) long with a longest span of 31 ft (9.4 m) and a deck 31 ft wide.

Who owns Tanner Williams RD over Flat Creek?

It is owned by the County Highway Agency.