US Bridges

Old HWY 15 over Tchoutacabouffa River

Fair

Harrison County, Mississippi · Sec 5 T 7S R 9W B · Structure no. SA2400000000074

Built
1998
27 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
6 main spans
Daily traffic
3,500
2012 count
Owner
County
County Highway Agency

About this bridge

Old HWY 15 over Tchoutacabouffa River is a prestressed concrete stringer/multi-beam or girder carrying Old HWY 15 over Tchoutacabouffa River in Harrison County, Mississippi. It was built in 1998, so it is 27 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 3,500 vehicles a day, roughly 8% of them trucks, projected to reach 5,000 by 2042. The structure is 420 ft (128 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOld HWY 15
CrossesTchoutacabouffa River
LocationSec 5 T 7S R 9W B
RouteCounty Highway 17
Coordinates30.45971, -88.90848
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.8 US tons
Inventory rating27.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length420 ft (128 m)
Longest span100 ft (30.5 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2012)
Projected traffic5,000 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Old HWY 15 over Tchoutacabouffa River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Old HWY 15 over Tchoutacabouffa River 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 Old HWY 15 over Tchoutacabouffa River carry?

About 3,500 vehicles per day (2012 count), of which roughly 8% are trucks.

How long is Old HWY 15 over Tchoutacabouffa River?

The structure is 420 ft (128 m) long with a longest span of 100 ft (30.5 m) and a deck 39 ft wide.

Who owns Old HWY 15 over Tchoutacabouffa River?

It is owned by the County Highway Agency.