Structure 10750017403178 · Fannin County, TX

SH 34 over North Sulphur River

Carries SH 34 over North Sulphur River, 1.9 Mi S Of FM 1550.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
5,880 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

5,880 ft end to end, longest span 120 ft: about 16 football fields, or 1.1 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built20233 years old
Length5879.9 ft1792.2 m
Daily traffic1,536counted 2023
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyFannin
Location1.9 Mi S Of FM 1550
CarriesSH 34
CrossesNorth Sulphur River
Coordinates33.45619, -95.94271

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length5879.9 ft (1792.2 m)
Max Span120.1 ft (36.6 m)
Deck Width59.1 ft (18 m)
Deck Area32259.6 sq m
Main Spans49
Year Built2023

Traffic

Avg Daily Traffic1,536 (2023)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number010750017403178

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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