US Bridges

Spur 215 over Alligator Bayou

Fair

Jefferson County, Texas · 1.1 MI SE of SH 73 · Structure no. 201240050806021

Built
1961
64 years old, rebuilt 1990
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
182 ft
6 main spans
Daily traffic
9,395
2022 count
Owner
State
State Highway Agency

About this bridge

Spur 215 over Alligator Bayou is a concrete stringer/multi-beam or girder carrying Spur 215 over Alligator Bayou in Jefferson County, Texas. It was built in 1961 and reconstructed in 1990, so it is 64 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.

It carries about 9,395 vehicles a day, roughly 9% of them trucks, projected to reach 11,790 by 2033. The structure is 182 ft (55.5 m) long and 54 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSpur 215
CrossesAlligator Bayou
Location1.1 MI SE of SH 73
RouteState Highway 215
CountyJefferson County
StateTexas
Coordinates29.89396, -93.9536
Functional classUrban Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length182 ft (55.5 m)
Longest span30 ft (9.1 m)
Deck width54 ft (16.6 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,395 (2022)
Projected traffic11,790 by 2033
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$411,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Spur 215 over Alligator Bayou built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1990.

What condition is Spur 215 over Alligator Bayou 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 July 2024.

How much traffic does Spur 215 over Alligator Bayou carry?

About 9,395 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Spur 215 over Alligator Bayou?

The structure is 182 ft (55.5 m) long with a longest span of 30 ft (9.1 m) and a deck 54 ft wide.

Who owns Spur 215 over Alligator Bayou?

It is owned by the State Highway Agency.