Structure 10920004718263 · Grayson County, TX

US 75 SB over Loy Lake RD

Carries US 75 SB over Loy Lake RD, 1.5 Mi N Of FM 691.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT390 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

390 ft end to end: about 5 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.

Built198739 years old
Length390.1 ft118.9 m
Daily traffic26,426counted 2021
Last inspectedJune 2023every 48 months

Location

StateTexas
CountyGrayson
Location1.5 Mi N Of FM 691
CarriesUS 75 SB
CrossesLoy Lake RD
Coordinates33.72894, -96.58558

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length390.1 ft (118.9 m)
Max Span120.1 ft (36.6 m)
Deck Width40.0 ft (12.2 m)
Deck Area1450.6 sq m
Main Spans1
Year Built1987

Traffic

Avg Daily Traffic26,426 (2021)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number010920004718263

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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