US Bridges

Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh

Fair

Caddo Parish, Louisiana · I.8 Mi. West of LA 169 · Structure no. 040932135940101

Built
1984
41 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
60
2019 count
Owner
County
County Highway Agency

About this bridge

Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh is a concrete slab carrying Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh in Caddo Parish, Louisiana. It was built in 1984, so it is 41 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 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 60 vehicles a day, projected to reach 66 by 2039. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKeatchie-Marshall
CrossesTrib.Mill Cr.Kechi-Marsh
LocationI.8 Mi. West of LA 169
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.22489, -94.01702
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating28.9 US tons
Inventory rating22.5 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 width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2019)
Projected traffic66 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh built?

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

What condition is Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh 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 Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh carry?

About 60 vehicles per day (2019 count).

How long is Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh?

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 Keatchie-Marshall over Trib.Mill Cr.Kechi-Marsh?

It is owned by the County Highway Agency.