Structure 121700011004140 · Montgomery County, TX

FM 1488 over IH 45

Carries FM 1488 over IH 45, 2.00 Mi N 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 FT468 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

468 ft end to end, longest span 117 ft: about 6 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.

Built199432 years old
Length467.8 ft142.6 m
Daily traffic40,520counted 2013
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyMontgomery
Location2.00 Mi N Of SH 242
CarriesFM 1488
CrossesIH 45
Coordinates30.23662, -95.45879

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length467.8 ft (142.6 m)
Max Span117.1 ft (35.7 m)
Deck Width74.8 ft (22.8 m)
Deck Area3251.3 sq m
Main Spans4
Year Built1994

Traffic

Avg Daily Traffic40,520 (2013)
Truck Traffic9%
Lanes On Bridge4
Lanes Under Bridge16

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number121700011004140

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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