US Bridges

West 18th Street over Gum Creek

Poor

Calcasieu Parish, Louisiana · 0.6 MI W of LA 385 · Structure no. 071030121931491

Built
1965
60 years old
Condition
Poor
inspected December 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
4,078
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

West 18th Street over Gum Creek is a concrete slab carrying West 18th Street over Gum Creek in Calcasieu Parish, Louisiana. It was built in 1965, so it is 60 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,078 vehicles a day, projected to reach 4,485 by 2039. The structure is 76 ft (23.2 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWest 18th Street
CrossesGum Creek
Location0.6 MI W of LA 385
RouteCounty Highway 0
Coordinates30.20561, -93.22959
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,078 (2019)
Projected traffic4,485 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 West 18th Street over Gum Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is West 18th Street over Gum Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does West 18th Street over Gum Creek carry?

About 4,078 vehicles per day (2019 count).

How long is West 18th Street over Gum Creek?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 34 ft wide.

Who owns West 18th Street over Gum Creek?

It is owned by the City or Municipal Highway Agency.