US Bridges

Montana ST over Cooper Road Ditch

Fair

Caddo Parish, Louisiana · 0.2 M N of LA3194 · Structure no. 040932330934811

Built
1982
43 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
59 ft
3 main spans
Daily traffic
650
1979 count
Owner
City
City or Municipal Highway Agency

About this bridge

Montana ST over Cooper Road Ditch is a concrete slab carrying Montana ST over Cooper Road Ditch 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.

It carries about 650 vehicles a day, projected to reach 715 by 1999. The structure is 59 ft (18 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMontana ST
CrossesCooper Road Ditch
Location0.2 M N of LA3194
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.54986, -93.80115
Functional classUrban 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length59 ft (18 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 traffic650 (1979)
Projected traffic715 by 1999
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Montana ST over Cooper Road Ditch built?

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

What condition is Montana ST over Cooper Road Ditch 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 Montana ST over Cooper Road Ditch carry?

About 650 vehicles per day (1979 count).

How long is Montana ST over Cooper Road Ditch?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Montana ST over Cooper Road Ditch?

It is owned by the City or Municipal Highway Agency.