Structure 121700011004181 · Montgomery County, TX

Ih45 NB To Woodlnd over IH 45

Carries Ih45 NB To Woodlnd over IH 45, 3.75 Mi S Of SH 242.

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 FT2,057 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

2,057 ft end to end, longest span 311 ft: about 5.7 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 an orthotropic-deck bridge.

Built200224 years old
Length2057.1 ft627 m
Daily traffic18,000counted 2023
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyMontgomery
Location3.75 Mi S Of SH 242
CarriesIh45 NB To Woodlnd
CrossesIH 45
Coordinates30.15344, -95.44819

Physical Characteristics

MaterialSteel Continuous
DesignOrthotropic
Total Length2057.1 ft (627 m)
Max Span311.0 ft (94.8 m)
Deck Width28.9 ft (8.8 m)
Deck Area5517.6 sq m
Main Spans4
Year Built2002

Traffic

Avg Daily Traffic18,000 (2023)
Truck Traffic10%
Lanes On Bridge1
Lanes Under Bridge21

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121700011004181

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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