Structure 161780010106046 · Nueces County, TX

US 181 NB over Nueces Bay

Carries US 181 NB over Nueces Bay, 2.3 Mi NE Of Ship Channel.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
9,637 FT OVERALL2,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

9,637 ft end to end: about 27 football fields, or 1.8 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built1963rebuilt 1990
Length9637.1 ft2937.4 m
Daily traffic26,259counted 2023
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyNueces
Location2.3 Mi NE Of Ship Channel
CarriesUS 181 NB
CrossesNueces Bay
Coordinates27.84529, -97.36839

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length9637.1 ft (2937.4 m)
Max Span109.9 ft (33.5 m)
Deck Width58.7 ft (17.9 m)
Deck Area52579.5 sq m
Main Spans1
Year Built1963 (reconstructed 1990)

Traffic

Avg Daily Traffic26,259 (2023)
Truck Traffic6%
Lanes On Bridge3

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number161780010106046

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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