US Bridges

US0190 over Bayou Lacombe

Fair

St. Tammany Parish, Louisiana · 0.12 MI NE of LA 434 · Structure no. 625200131210841

Built
1938
87 years old
Condition
Fair
inspected August 2023
Type
Movable - Swing
Steel
Length
320 ft
1 main span
Daily traffic
9,941
2021 count
Owner
State
State Highway Agency

About this bridge

US0190 over Bayou Lacombe is a steel movable - swing carrying US0190 over Bayou Lacombe in St. Tammany Parish, Louisiana. It was built in 1938, so it is 87 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.

It carries about 9,941 vehicles a day, roughly 6% of them trucks, projected to reach 10,935 by 2041. The structure is 320 ft (97.5 m) long and 33 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesUS0190
CrossesBayou Lacombe
Location0.12 MI NE of LA 434
RouteU.S. Route 190
CountySt. Tammany Parish
StateLouisiana
Coordinates30.31351, -89.9359
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+5 approach)
Design loadH 15
Structure length320 ft (97.5 m)
Longest span130 ft (39.6 m)
Deck width33 ft (10 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,941 (2021)
Projected traffic10,935 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US0190 over Bayou Lacombe built?

It was built in 1938, making it 87 years old in 2025.

What condition is US0190 over Bayou Lacombe 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 August 2023.

How much traffic does US0190 over Bayou Lacombe carry?

About 9,941 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is US0190 over Bayou Lacombe?

The structure is 320 ft (97.5 m) long with a longest span of 130 ft (39.6 m) and a deck 33 ft wide.

Who owns US0190 over Bayou Lacombe?

It is owned by the State Highway Agency.