Structure 180430C01000005 · Collin County, TX

Custer RD NB over Youngs Branch

Carries Custer RD NB over Youngs Branch, 0.7 Mi S Of SH 121.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very 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 FT210 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 6/9 · sets the rating

210 ft end to end, longest span 70 ft: about 3 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.

Built199828 years old
Length210.0 ft64 m
Daily traffic16,006counted 2018
Last inspectedDecember 2024every 24 months

Location

StateTexas
CountyCollin
Location0.7 Mi S Of SH 121
CarriesCuster RD NB
CrossesYoungs Branch
Coordinates33.11370, -96.73339

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length210.0 ft (64 m)
Max Span69.9 ft (21.3 m)
Deck Width46.9 ft (14.3 m)
Deck Area915.2 sq m
Main Spans3
Year Built1998

Traffic

Avg Daily Traffic16,006 (2018)
Truck Traffic2%
Lanes On Bridge3

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number180430C01000005

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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