US Bridges

North 18th Street over Port Arthur FR Wtr Canal

FairPosted for load

Jefferson County, Texas · 100 Ft W of Spurlock RD · Structure no. 201240AA0353001

Built
1975
50 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
40 ft
4 main spans
Daily traffic
388
2019 count
Owner
County
County Highway Agency

About this bridge

North 18th Street over Port Arthur FR Wtr Canal is a concrete culvert carrying North 18th Street over Port Arthur FR Wtr Canal in Jefferson County, Texas. It was built in 1975, so it is 50 years old, older than the Texas average of 44.4 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. Its operating status is: posted for load restriction.

It carries about 388 vehicles a day, roughly 3% of them trucks, projected to reach 388 by 2039. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNorth 18th Street
CrossesPort Arthur FR Wtr Canal
Location100 Ft W of Spurlock RD
RouteCounty Highway 0
CountyJefferson County
StateTexas
Coordinates29.98396, -94.0132
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span9 ft (2.7 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic388 (2019)
Projected traffic388 by 2039
Trucks3%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was North 18th Street over Port Arthur FR Wtr Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is North 18th Street over Port Arthur FR Wtr Canal 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 June 2023.

How much traffic does North 18th Street over Port Arthur FR Wtr Canal carry?

About 388 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is North 18th Street over Port Arthur FR Wtr Canal?

The structure is 40 ft (12.2 m) long with a longest span of 9 ft (2.7 m) and a deck 28 ft wide.

Who owns North 18th Street over Port Arthur FR Wtr Canal?

It is owned by the County Highway Agency.