US Bridges

Hdq-Ndnt & Dnt NB over Srt Toll RD

Good

Collin County, Texas · Dnt at SH 121 Toll RD · Structure no. 180430036404623

Built
2009
16 years old, rebuilt 2011
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,438 ft
15 main spans
Daily traffic
56,198
2018 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Hdq-Ndnt & Dnt NB over Srt Toll RD is a prestressed concrete stringer/multi-beam or girder carrying Hdq-Ndnt & Dnt NB over Srt Toll RD in Collin County, Texas. It was built in 2009 and reconstructed in 2011, so it is 16 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 56,198 vehicles a day, roughly 4% of them trucks, projected to reach 78,677 by 2038. The structure is 1,438 ft (438.3 m) long and 50 ft wide.

Location

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CarriesHdq-Ndnt & Dnt NB
CrossesSrt Toll RD
LocationDnt at SH 121 Toll RD
CountyCollin County
StateTexas
Coordinates33.09117, -96.82279
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length1,438 ft (438.3 m)
Longest span122 ft (37.2 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic56,198 (2018)
Projected traffic78,677 by 2038
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hdq-Ndnt & Dnt NB over Srt Toll RD built?

It was built in 2009, making it 16 years old in 2025. It was reconstructed in 2011.

What condition is Hdq-Ndnt & Dnt NB over Srt Toll RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Hdq-Ndnt & Dnt NB over Srt Toll RD carry?

About 56,198 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Hdq-Ndnt & Dnt NB over Srt Toll RD?

The structure is 1,438 ft (438.3 m) long with a longest span of 122 ft (37.2 m) and a deck 50 ft wide.

Who owns Hdq-Ndnt & Dnt NB over Srt Toll RD?

It is owned by the Local Toll Authority.