Structure 121020TOL030032 · Harris County, TX

Westpark Tollway over Synott RD

Carries Westpark Tollway over Synott RD, 1.75 Mi E Of SH 6.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT320 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

320 ft end to end, longest span 116 ft: 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.

Built200521 years old
Length319.9 ft97.5 m
Daily traffic10,000counted 2013
Last inspectedNovember 2023every 24 months

Location

StateTexas
CountyHarris
Location1.75 Mi E Of SH 6
CarriesWestpark Tollway
CrossesSynott RD
Coordinates29.71349, -95.61473

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length319.9 ft (97.5 m)
Max Span116.1 ft (35.4 m)
Deck Width79.1 ft (24.1 m)
Deck Area2349.8 sq m
Main Spans3
Year Built2005

Traffic

Avg Daily Traffic10,000 (2013)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020TOL030032

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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