Structure 121700353801015 · Montgomery County, TX

SH 242 over Drainage Ditch

Carries SH 242 over Drainage Ditch, 2.25 Mi S Of FM 1488.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT53 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 53 ft across with 5 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built199432 years old
Length53.1 ft16.2 m
Daily traffic15,530counted 2013
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyMontgomery
Location2.25 Mi S Of FM 1488
CarriesSH 242
CrossesDrainage Ditch
Coordinates30.20361, -95.49152

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length53.1 ft (16.2 m)
Max Span8.9 ft (2.7 m)
Deck Area375.8 sq m
Main Spans5
Year Built1994

Traffic

Avg Daily Traffic15,530 (2013)
Truck Traffic7%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number121700353801015

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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