Structure 180430036404135 · Collin County, TX

Srt Nbml over W Rowlett Creek

Carries Srt Nbml over W Rowlett Creek, 0.1 Mi W Of FM 2478.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · 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 FT307 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

307 ft end to end: 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 multi-beam bridge.

Built2005rebuilt 2008
Length307.1 ft93.6 m
Daily traffic45,431counted 2023
Last inspectedOctober 2023every 24 months

Location

StateTexas
CountyCollin
Location0.1 Mi W Of FM 2478
CarriesSrt Nbml
CrossesW Rowlett Creek
Coordinates33.12412, -96.73529

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length307.1 ft (93.6 m)
Max Span129.9 ft (39.6 m)
Deck Width82.0 ft (25 m)
Deck Area2,340 sq m
Main Spans1
Year Built2005 (reconstructed 2008)

Traffic

Avg Daily Traffic45,431 (2023)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number180430036404135

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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