Structure 120850050001132 · Galveston County, TX

IH 45 SB over Bnsf Rr

Carries IH 45 SB over Bnsf Rr, 2.20 Mi SE Of SH 146.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,492 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9Substructure 4/9 · sets the rating

1,492 ft end to end, longest span 60 ft: about 4.1 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.

Built1965rebuilt 1987
Length1492.1 ft454.8 m
Daily traffic33,950counted 2013
Last inspectedSeptember 2024every 24 months

Location

StateTexas
CountyGalveston
Location2.20 Mi SE Of SH 146
CarriesIH 45 SB
CrossesBnsf Rr
Coordinates29.30761, -94.90673

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1492.1 ft (454.8 m)
Max Span60.0 ft (18.3 m)
Deck Width58.1 ft (17.7 m)
Deck Area8050.0 sq m
Main Spans2
Year Built1965 (reconstructed 1987)

Traffic

Avg Daily Traffic33,950 (2013)
Truck Traffic4%
Lanes On Bridge3

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number120850050001132

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