Structure 121020038913118 · Harris County, TX

Sh146nb To Sp330wb over SH 146 Sp330 Decker DR

Carries Sh146nb To Sp330wb over SH 146 Sp330 Decker DR, At Jct Sh146 And Spur330.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,594 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

3,594 ft end to end, longest span 120 ft: about 10.0 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 multi-beam bridge.

Built200224 years old
Length3594.2 ft1095.5 m
Daily traffic15,760counted 2010
Last inspectedOctober 2022every 48 months

Location

StateTexas
CountyHarris
LocationAt Jct Sh146 And Spur330
CarriesSh146nb To Sp330wb
CrossesSH 146 Sp330 Decker DR
Coordinates29.74704, -94.98582

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length3594.2 ft (1095.5 m)
Max Span120.1 ft (36.6 m)
Deck Width42.7 ft (13 m)
Deck Area14241.5 sq m
Main Spans31
Year Built2002

Traffic

Avg Daily Traffic15,760 (2010)
Truck Traffic18%
Lanes On Bridge2
Lanes Under Bridge14

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020038913118

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