Structure 201240B00326001 · Jefferson County, TX

Delaware Avenue over Hillebrandt Bayou

Carries Delaware Avenue over Hillebrandt Bayou, 0.1 Mi E Of Dowlen RD.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

75 ft end to end, longest span 25 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built197749 years old
Length75.1 ft22.9 m
Daily traffic12,097counted 2022
Last inspectedJuly 2023every 24 months

Location

StateTexas
CountyJefferson
Location0.1 Mi E Of Dowlen RD
CarriesDelaware Avenue
CrossesHillebrandt Bayou
Coordinates30.10482, -94.16641

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length75.1 ft (22.9 m)
Max Span24.9 ft (7.6 m)
Deck Width76.1 ft (23.2 m)
Deck Area531.3 sq m
Main Spans3
Year Built1977

Traffic

Avg Daily Traffic12,097 (2022)
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number201240B00326001

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges