Structure 91610025809077 · McLennan County, TX

SH 6 SB over Loop 340

Carries SH 6 SB over Loop 340, 3.4 Mi E Of IH 35.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT307 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

307 ft end to end, longest span 60 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 slab bridge.

Built196957 years old
Length307.1 ft93.6 m
Daily traffic3,921counted 2017
Last inspectedApril 2023every 24 months

Location

StateTexas
CountyMcLennan
Location3.4 Mi E Of IH 35
CarriesSH 6 SB
CrossesLoop 340
Coordinates31.54709, -97.07005

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length307.1 ft (93.6 m)
Max Span60.0 ft (18.3 m)
Deck Width41.7 ft (12.7 m)
Deck Area1188.7 sq m
Main Spans6
Year Built1969

Traffic

Avg Daily Traffic3,921 (2017)
Truck Traffic28%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number091610025809077

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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