US Bridges

Johns Gin Rd. over Trib to Mill Creek

FairPosted for load

Caddo Parish, Louisiana · 0.8 MI S Keatchie-Marshal · Structure no. 040932128940161

Built
1982
43 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
58
2019 count
Owner
County
County Highway Agency

About this bridge

Johns Gin Rd. over Trib to Mill Creek is a concrete slab carrying Johns Gin Rd. over Trib to Mill Creek in Caddo Parish, Louisiana. It was built in 1982, so it is 43 years old, younger than the Louisiana average of 43 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 58 vehicles a day, projected to reach 63 by 2039. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesJohns Gin Rd.
CrossesTrib to Mill Creek
Location0.8 MI S Keatchie-Marshal
RouteCounty Highway 0
Coordinates32.21331, -94.02664
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.7 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2019)
Projected traffic63 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Johns Gin Rd. over Trib to Mill Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Johns Gin Rd. over Trib to Mill Creek 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 March 2023.

How much traffic does Johns Gin Rd. over Trib to Mill Creek carry?

About 58 vehicles per day (2019 count).

How long is Johns Gin Rd. over Trib to Mill Creek?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Johns Gin Rd. over Trib to Mill Creek?

It is owned by the County Highway Agency.