Structure 121700011004308 · Montgomery County, TX

IH 45 NB To SH 242 over R.o.w

Carries IH 45 NB To SH 242 over R.o.w, 0.4 Mi S Of SH 242.

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 FT1,490 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,490 ft end to end, longest span 115 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.

Built201412 years old
Length1490.2 ft454.2 m
Daily traffic4,650counted 2018
Last inspectedDecember 2022every 48 months

Location

StateTexas
CountyMontgomery
Location0.4 Mi S Of SH 242
CarriesIH 45 NB To SH 242
CrossesR.o.w
Coordinates30.20467, -95.45552

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1490.2 ft (454.2 m)
Max Span115.2 ft (35.1 m)
Deck Width38.4 ft (11.7 m)
Deck Area5314.1 sq m
Main Spans13
Year Built2014

Traffic

Avg Daily Traffic4,650 (2018)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121700011004308

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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