Structure 121020325603498 · Harris County, TX

Bw 8 over Spencer HWY

Carries Bw 8 over Spencer HWY, 3.2 Mi S Of SH 225.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT265 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

265 ft end to end: about 4 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built20206 years old
Length265.1 ft80.8 m
Daily traffic49,665counted 2016
Last inspectedOctober 2022every 48 months

Location

StateTexas
CountyHarris
Location3.2 Mi S Of SH 225
CarriesBw 8
CrossesSpencer HWY
Coordinates29.66564, -95.15579

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length265.1 ft (80.8 m)
Max Span115.2 ft (35.1 m)
Deck Width150.6 ft (45.9 m)
Deck Area3708.7 sq m
Main Spans1
Year Built2020

Traffic

Avg Daily Traffic49,665 (2016)
Truck Traffic4%
Lanes On Bridge8
Lanes Under Bridge10

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 48 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020325603498

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.

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