Structure 150150001607173 · Bexar County, TX

Shin Oak Drive over IH 35 Mls.

Carries Shin Oak Drive over IH 35 Mls., 0.7 Mi S Of Lp 1604.

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 FT634 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

634 ft end to end, longest span 80 ft: about 1.8 football fields. 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.

Built198640 years old
Length633.9 ft193.2 m
Daily traffic2,530counted 2011
Last inspectedMay 2022every 48 months

Location

StateTexas
CountyBexar
Location0.7 Mi S Of Lp 1604
CarriesShin Oak Drive
CrossesIH 35 Mls.
Coordinates29.56083, -98.34144

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length633.9 ft (193.2 m)
Max Span80.1 ft (24.4 m)
Deck Width49.9 ft (15.2 m)
Deck Area2936.6 sq m
Main Spans6
Year Built1986

Traffic

Avg Daily Traffic2,530 (2011)
Lanes On Bridge2
Lanes Under Bridge14

Inspection & Ownership

Last InspectionMay 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number150150001607173

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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