Structure 91610001501729 · McLennan County, TX

IH 35 Sbml over 4th/5th Street

Carries IH 35 Sbml over 4th/5th Street, 0.53 Mi SW Of Brazos Ri.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT710 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

710 ft end to end, longest span 125 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 box-beam bridge.

Built20215 years old
Length710.0 ft216.4 m
Daily traffic133,572counted 2023
Last inspectedApril 2023every 48 months

Location

StateTexas
CountyMcLennan
Location0.53 Mi SW Of Brazos Ri
CarriesIH 35 Sbml
Crosses4th/5th Street
Coordinates31.54979, -97.12368

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length710.0 ft (216.4 m)
Max Span125.0 ft (38.1 m)
Deck Width71.9 ft (21.9 m)
Deck Area4739.2 sq m
Main Spans6
Year Built2021

Traffic

Avg Daily Traffic133,572 (2023)
Truck Traffic19%
Lanes On Bridge4
Lanes Under Bridge8

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number091610001501729

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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