Structure 191550006206030 · Marion County, TX

US 59 NB over Little Cypress Bayou

Carries US 59 NB over Little Cypress Bayou, At Harrison C/l.

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
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT650 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

650 ft end to end, longest span 25 ft: about 1.8 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 slab bridge.

Built1953rebuilt 1988
Length649.9 ft198.1 m
Daily traffic5,809counted 2019
Last inspectedSeptember 2024every 24 months

Location

StateTexas
CountyMarion
LocationAt Harrison C/l
CarriesUS 59 NB
CrossesLittle Cypress Bayou
Coordinates32.71288, -94.34567

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length649.9 ft (198.1 m)
Max Span24.9 ft (7.6 m)
Deck Width40.0 ft (12.2 m)
Deck Area2416.8 sq m
Main Spans26
Year Built1953 (reconstructed 1988)

Traffic

Avg Daily Traffic5,809 (2019)
Truck Traffic40%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number191550006206030

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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