Structure 142270313601014 · Travis County, TX

Lp 1 NB over Barton Springs/a. Zilker

Carries Lp 1 NB over Barton Springs/a. Zilker, 2.30 Mi NE Of Lp 360.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,051 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

1,051 ft end to end, longest span 120 ft: about 2.9 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.

Built197353 years old
Length1050.9 ft320.3 m
Daily traffic90,915counted 2019
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyTravis
Location2.30 Mi NE Of Lp 360
CarriesLp 1 NB
CrossesBarton Springs/a. Zilker
Coordinates30.26930, -97.77601

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1050.9 ft (320.3 m)
Max Span120.1 ft (36.6 m)
Deck Width55.8 ft (17 m)
Deck Area5445.1 sq m
Main Spans7
Year Built1973

Traffic

Avg Daily Traffic90,915 (2019)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number142270313601014

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.

Nearby Bridges