Structure 201240066701013 · Jefferson County, TX

SH 347 SB over Spur 136 & Kcs Railroad

Carries SH 347 SB over Spur 136 & Kcs Railroad, SH 347 @ Spur 136.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT477 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

477 ft end to end, longest span 90 ft: about 7 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.

Built198343 years old
Length477.0 ft145.4 m
Daily traffic9,485counted 2020
Last inspectedJuly 2024every 48 months

Location

StateTexas
CountyJefferson
LocationSH 347 @ Spur 136
CarriesSH 347 SB
CrossesSpur 136 & Kcs Railroad
Coordinates29.94711, -93.94945

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length477.0 ft (145.4 m)
Max Span89.9 ft (27.4 m)
Deck Width52.2 ft (15.9 m)
Deck Area2311.9 sq m
Main Spans3
Year Built1983

Traffic

Avg Daily Traffic9,485 (2020)
Truck Traffic9%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number201240066701013

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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