US Bridges

Ellerbe RD over Prairie River

FairPosted for load

Caddo Parish, Louisiana · 1 MI N.W. of Caspian · Structure no. 040932177933441

Built
1962
63 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
3 main spans
Daily traffic
61
2019 count
Owner
County
County Highway Agency

About this bridge

Ellerbe RD over Prairie River is a steel stringer/multi-beam or girder carrying Ellerbe RD over Prairie River in Caddo Parish, Louisiana. It was built in 1962, so it is 63 years old, older 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. Its operating status is: posted for load restriction.

It carries about 61 vehicles a day, projected to reach 67 by 2039. The structure is 61 ft (18.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesEllerbe RD
CrossesPrairie River
Location1 MI N.W. of Caspian
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.29575, -93.57263
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 statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61 (2019)
Projected traffic67 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Ellerbe RD over Prairie River built?

It was built in 1962, making it 63 years old in 2025.

What condition is Ellerbe RD over Prairie 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 March 2023.

How much traffic does Ellerbe RD over Prairie River carry?

About 61 vehicles per day (2019 count).

How long is Ellerbe RD over Prairie River?

The structure is 61 ft (18.6 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Ellerbe RD over Prairie River?

It is owned by the County Highway Agency.