US Bridges

IH 35W NB Conn a over FM 1515 (bonnie Brae Rd)

Fair

Denton County, Texas · 1.60 MI NW of US 377 · Structure no. 180610008113136

Built
1970
55 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
116,407
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35W NB Conn a over FM 1515 (bonnie Brae Rd) is a prestressed concrete stringer/multi-beam or girder carrying IH 35W NB Conn a over FM 1515 (bonnie Brae Rd) in Denton County, Texas. It was built in 1970, so it is 55 years old, older 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 116,407 vehicles a day, roughly 14% of them trucks, projected to reach 5,610 by 2033. The structure is 165 ft (50.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 35W NB Conn a
CrossesFM 1515 (bonnie Brae Rd)
Location1.60 MI NW of US 377
RouteInterstate 35
CountyDenton County
StateTexas
Coordinates33.20822, -97.16146
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span60 ft (18.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic116,407 (2023)
Projected traffic5,610 by 2033
Trucks14%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35W NB Conn a over FM 1515 (bonnie Brae Rd) built?

It was built in 1970, making it 55 years old in 2025.

What condition is IH 35W NB Conn a over FM 1515 (bonnie Brae Rd) 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 February 2023.

How much traffic does IH 35W NB Conn a over FM 1515 (bonnie Brae Rd) carry?

About 116,407 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is IH 35W NB Conn a over FM 1515 (bonnie Brae Rd)?

The structure is 165 ft (50.3 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.

Who owns IH 35W NB Conn a over FM 1515 (bonnie Brae Rd)?

It is owned by the State Highway Agency.