US Bridges

Srt S to Dnt S over Dnt Srt Hdq DR

Fair

Collin County, Texas · Dnt SH 121 Toll RD · Structure no. 180430036404627

Built
2011
14 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
5,652 ft
9 main spans
Daily traffic
3,990
2018 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Srt S to Dnt S over Dnt Srt Hdq DR is a steel continuous stringer/multi-beam or girder carrying Srt S to Dnt S over Dnt Srt Hdq DR in Collin County, Texas. It was built in 2011, so it is 14 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,990 vehicles a day, roughly 3% of them trucks, projected to reach 5,586 by 2038. The structure is 5,652 ft (1,722.7 m) long and 38 ft wide.

Location

Open in Google Maps
CarriesSrt S to Dnt S
CrossesDnt Srt Hdq DR
LocationDnt SH 121 Toll RD
CountyCollin County
StateTexas
Coordinates33.0825, -96.82464
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9 (+32 approach)
Design loadHL 93
Structure length5,652 ft (1,722.7 m)
Longest span294 ft (89.6 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,990 (2018)
Projected traffic5,586 by 2038
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Srt S to Dnt S over Dnt Srt Hdq DR built?

It was built in 2011, making it 14 years old in 2025.

What condition is Srt S to Dnt S over Dnt Srt Hdq DR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Srt S to Dnt S over Dnt Srt Hdq DR carry?

About 3,990 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Srt S to Dnt S over Dnt Srt Hdq DR?

The structure is 5,652 ft (1,722.7 m) long with a longest span of 294 ft (89.6 m) and a deck 38 ft wide.

Who owns Srt S to Dnt S over Dnt Srt Hdq DR?

It is owned by the Local Toll Authority.