Structure 142270001513716 · Travis County, TX

US 183 NB To IH 35 over IH 35 Nbfr / US 183 Nbfr

Carries US 183 NB To IH 35 over IH 35 Nbfr / US 183 Nbfr, At IH 35/ US 183 Intch.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,915 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

3,915 ft end to end: about 11 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 box-beam bridge.

Built20197 years old
Length3915.0 ft1193.3 m
Daily traffic—reported figure implausible
Last inspectedAugust 2023every 24 months

Location

StateTexas
CountyTravis
LocationAt IH 35/ US 183 Intch
CarriesUS 183 NB To IH 35
CrossesIH 35 Nbfr / US 183 Nbfr
Coordinates30.33700, -97.69536

Physical Characteristics

MaterialSteel
DesignBox Beam - Multiple
Total Length3915.0 ft (1193.3 m)
Max Span220.1 ft (67.1 m)
Deck Width45.9 ft (14 m)
Deck Area16706.2 sq m
Main Spans1
Year Built2019

Traffic

Avg Daily Traffic137,133 (2012)
That is about 137,133 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 Traffic9%
Lanes On Bridge1
Lanes Under Bridge7

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number142270001513716

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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