Structure 201240050804322 · Jefferson County, TX

SH 73 EB over N Fork Mayhaw Bayou

Carries SH 73 EB over N Fork Mayhaw Bayou, 3.5 Mi E Of SH 124.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT270 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

270 ft end to end, longest span 45 ft: about 4 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 bridge of this kind.

Built200026 years old
Length270.0 ft82.3 m
Daily traffic7,603counted 2022
Last inspectedJune 2024every 24 months

Location

StateTexas
CountyJefferson
Location3.5 Mi E Of SH 124
CarriesSH 73 EB
CrossesN Fork Mayhaw Bayou
Coordinates29.82579, -94.29510

Physical Characteristics

MaterialPrestressed Concrete
DesignOther
Total Length270.0 ft (82.3 m)
Max Span44.9 ft (13.7 m)
Deck Width42.0 ft (12.8 m)
Deck Area1053.4 sq m
Main Spans6
Year Built2000

Traffic

Avg Daily Traffic7,603 (2022)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number201240050804322

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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