US Bridges

Srt NB over Elm Fk Trinity Ri & UPRR

Fair

Denton County, Texas · 0.20 MI E of IH 35E · Structure no. 180610354701001

Built
1999
26 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
3,736 ft
37 main spans
Daily traffic
15,000
2014 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Srt NB over Elm Fk Trinity Ri & UPRR is a prestressed concrete stringer/multi-beam or girder carrying Srt NB over Elm Fk Trinity Ri & UPRR in Denton County, Texas. It was built in 1999, so it is 26 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 15,000 vehicles a day, roughly 5% of them trucks, projected to reach 18,000 by 2034. The structure is 3,736 ft (1,138.7 m) long and 77 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSrt NB
CrossesElm Fk Trinity Ri & UPRR
Location0.20 MI E of IH 35E
RouteState Highway 121
CountyDenton County
StateTexas
Coordinates33.0056, -96.95132
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
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, precast panels
Main spans37
Design loadHS 20
Structure length3,736 ft (1,138.7 m)
Longest span110 ft (33.5 m)
Deck width77 ft (23.5 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2014)
Projected traffic18,000 by 2034
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed3.1 mi (5 km)
TollOn a free 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 Srt NB over Elm Fk Trinity Ri & UPRR built?

It was built in 1999, making it 26 years old in 2025.

What condition is Srt NB over Elm Fk Trinity Ri & UPRR 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 NB over Elm Fk Trinity Ri & UPRR carry?

About 15,000 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Srt NB over Elm Fk Trinity Ri & UPRR?

The structure is 3,736 ft (1,138.7 m) long with a longest span of 110 ft (33.5 m) and a deck 77 ft wide.

Who owns Srt NB over Elm Fk Trinity Ri & UPRR?

It is owned by the Local Toll Authority.