Structure 180610036403694 · Denton County, TX

S Colony BLVD over SH 121

Carries S Colony BLVD over SH 121, At Jct SH 121/ S Colony.

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 FT533 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

533 ft end to end, longest span 77 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.

Built201610 years old
Length533.1 ft162.5 m
Daily traffic7,500counted 2020
Last inspectedAugust 2022every 48 months

Location

StateTexas
CountyDenton
LocationAt Jct SH 121/ S Colony
CarriesS Colony BLVD
CrossesSH 121
Coordinates33.07649, -96.86545

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length533.1 ft (162.5 m)
Max Span77.1 ft (23.5 m)
Deck Width110.9 ft (33.8 m)
Deck Area5492.5 sq m
Main Spans6
Year Built2016

Traffic

Avg Daily Traffic7,500 (2020)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge12

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number180610036403694

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.

Nearby Bridges