Structure 121020050003297 · Harris County, TX

IH 45 SB over Bellfort Ave/howard DR

Carries IH 45 SB over Bellfort Ave/howard DR, 2.0 Mi SE Of IH 610.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT277 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

277 ft end to end, longest span 107 ft: about 4 semi-trucks nose to tail. 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.

Built199234 years old
Length276.9 ft84.4 m
Daily traffic113,880counted 2017
Last inspectedSeptember 2022every 48 months

Location

StateTexas
CountyHarris
Location2.0 Mi SE Of IH 610
CarriesIH 45 SB
CrossesBellfort Ave/howard DR
Coordinates29.67557, -95.26800

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length276.9 ft (84.4 m)
Max Span107.0 ft (32.6 m)
Deck Width84.6 ft (25.8 m)
Deck Area2177.5 sq m
Main Spans3
Year Built1992

Traffic

Avg Daily Traffic113,880 (2017)
Truck Traffic7%
Lanes On Bridge5
Lanes Under Bridge10

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121020050003297

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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