Structure 121020017801448 · Harris County, TX

SH 35 NB Conn over IH 45 & IH 610

Carries SH 35 NB Conn over IH 45 & IH 610, Jct SH 35 @ IH 45.

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 FT1,628 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,628 ft end to end, longest span 295 ft: about 4.5 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.

Built20197 years old
Length1628.0 ft496.2 m
Daily traffic9,706counted 2016
Last inspectedDecember 2024every 24 months

Location

StateTexas
CountyHarris
LocationJct SH 35 @ IH 45
CarriesSH 35 NB Conn
CrossesIH 45 & IH 610
Coordinates29.69645, -95.29177

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1628.0 ft (496.2 m)
Max Span294.9 ft (89.9 m)
Deck Width30.8 ft (9.4 m)
Deck Area4664.3 sq m
Main Spans3
Year Built2019

Traffic

Avg Daily Traffic9,706 (2016)
Truck Traffic10%
Lanes On Bridge1
Lanes Under Bridge8

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020017801448

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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