Structure 142270001513687 · Travis County, TX

Ih35 NB Ent Ramp over Ih35 NB Exit Ramp

Carries Ih35 NB Ent Ramp over Ih35 NB Exit Ramp, 0.8 Mi N Of SH 71.

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 FT725 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

725 ft end to end, longest span 130 ft: about 2.0 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.

Built20197 years old
Length725.1 ft221 m
Daily traffic—reported figure implausible
Last inspectedAugust 2023every 48 months

Location

StateTexas
CountyTravis
Location0.8 Mi N Of SH 71
CarriesIh35 NB Ent Ramp
CrossesIh35 NB Exit Ramp
Coordinates30.22780, -97.74435

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length725.1 ft (221 m)
Max Span129.9 ft (39.6 m)
Deck Width25.9 ft (7.9 m)
Deck Area1745.9 sq m
Main Spans2
Year Built2019

Traffic

Avg Daily Traffic185,424 (2014)
That is about 185,424 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic12%
Lanes On Bridge1
Lanes Under Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number142270001513687

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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