US Bridges

IH 35E Nbfr over SH 121 Bus

Fair

Denton County, Texas · 4.25 MI NW of Dallas C/L · Structure no. 180610019602192

Built
1981
44 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
404 ft
6 main spans
Daily traffic
14,460
2013 count
Owner
State
State Highway Agency

About this bridge

IH 35E Nbfr over SH 121 Bus is a prestressed concrete stringer/multi-beam or girder carrying IH 35E Nbfr over SH 121 Bus in Denton County, Texas. It was built in 1981, so it is 44 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 14,460 vehicles a day, roughly 8% of them trucks, projected to reach 20,780 by 2033. The structure is 404 ft (123.1 m) long and 42 ft wide.

CarriesIH 35E Nbfr
CrossesSH 121 Bus
Location4.25 MI NW of Dallas C/L
StateTexas
Coordinates33.03051, -96.99294
Functional classUrban Collector

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.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length404 ft (123.1 m)
Longest span74 ft (22.6 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,460 (2013)
Projected traffic20,780 by 2033
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 IH 35E Nbfr over SH 121 Bus built?

It was built in 1981, making it 44 years old in 2025.

What condition is IH 35E Nbfr over SH 121 Bus 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 October 2023.

How much traffic does IH 35E Nbfr over SH 121 Bus carry?

About 14,460 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is IH 35E Nbfr over SH 121 Bus?

The structure is 404 ft (123.1 m) long with a longest span of 74 ft (22.6 m) and a deck 42 ft wide.

Who owns IH 35E Nbfr over SH 121 Bus?

It is owned by the State Highway Agency.