Structure 150150052104402 · Bexar County, TX

IH 410 Nbml Ent Rp over IH 410 Nbml Exit Ramp

Carries IH 410 Nbml Ent Rp over IH 410 Nbml Exit Ramp, 1.0 Mi NE SH 151.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT669 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

669 ft end to end, longest span 125 ft: about 1.9 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.

Built20188 years old
Length669.0 ft203.9 m
Daily traffic5,000counted 2018
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyBexar
Location1.0 Mi NE SH 151
CarriesIH 410 Nbml Ent Rp
CrossesIH 410 Nbml Exit Ramp
Coordinates29.44580, -98.63564

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length669.0 ft (203.9 m)
Max Span125.0 ft (38.1 m)
Deck Width25.9 ft (7.9 m)
Deck Area1610.8 sq m
Main Spans4
Year Built2018

Traffic

Avg Daily Traffic5,000 (2018)
Truck Traffic7%
Lanes On Bridge1
Lanes Under Bridge1

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number150150052104402

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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