Structure 142270001513082 · Travis County, TX

IH 35 Ml & Fr over Tannehill Br

Carries IH 35 Ml & Fr over Tannehill Br, 0.7 Mi S Of US 290 E.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT162 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 162 ft across with 5 openings: about 2 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, so those are drawn as typical for a culvert.

Built1953rebuilt 1977
Length162.1 ft49.4 m
Daily traffic170,802counted 2020
Last inspectedAugust 2023every 24 months

Location

StateTexas
CountyTravis
Location0.7 Mi S Of US 290 E
CarriesIH 35 Ml & Fr
CrossesTannehill Br
Coordinates30.31305, -97.70849

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length162.1 ft (49.4 m)
Max Span6.9 ft (2.1 m)
Deck Area3072.7 sq m
Main Spans5
Year Built1953 (reconstructed 1977)

Traffic

Avg Daily Traffic170,802 (2020)
Truck Traffic12%
Lanes On Bridge15

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number142270001513082

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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