US Bridges

LA0170 over Oil Branch

Fair

Caddo Parish, Louisiana · 1.3 Mile East of LA 1 · Structure no. 040900960101861

Built
2008
17 years old
Condition
Fair
inspected January 2024
Type
Culvert
Steel
Length
22 ft
4 main spans
Daily traffic
1,209
2021 count
Owner
State
State Highway Agency

About this bridge

LA0170 over Oil Branch is a steel culvert carrying LA0170 over Oil Branch in Caddo Parish, Louisiana. It was built in 2008, so it is 17 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 1,209 vehicles a day, roughly 19% of them trucks, projected to reach 1,329 by 2041. The structure is 22 ft (6.7 m) long and 75 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLA0170
CrossesOil Branch
Location1.3 Mile East of LA 1
RouteState Highway 170
CountyCaddo Parish
StateLouisiana
Coordinates32.85313, -93.97126
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span4 ft (1.2 m)
Deck width75 ft (22.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,209 (2021)
Projected traffic1,329 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0170 over Oil Branch built?

It was built in 2008, making it 17 years old in 2025.

What condition is LA0170 over Oil Branch 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 January 2024.

How much traffic does LA0170 over Oil Branch carry?

About 1,209 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0170 over Oil Branch?

The structure is 22 ft (6.7 m) long with a longest span of 4 ft (1.2 m) and a deck 75 ft wide.

Who owns LA0170 over Oil Branch?

It is owned by the State Highway Agency.