US Bridges

IH 35W Nbml over FM 407

Good

Denton County, Texas · 2.69 MI N of FM 1171 · Structure no. 180610008113112

Built
1969
56 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
195 ft
3 main spans
Daily traffic
30,909
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35W Nbml over FM 407 is a prestressed concrete stringer/multi-beam or girder carrying IH 35W Nbml over FM 407 in Denton County, Texas. It was built in 1969, so it is 56 years old, older 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 30,909 vehicles a day, roughly 14% of them trucks, projected to reach 28,050 by 2033. The structure is 195 ft (59.4 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIH 35W Nbml
CrossesFM 407
Location2.69 MI N of FM 1171
RouteInterstate 35
StateTexas
Coordinates33.10045, -97.22416
Functional classUrban Principal Arterial - Interstate

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span65 ft (19.8 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,909 (2023)
Projected traffic28,050 by 2033
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 Nbml over FM 407 built?

It was built in 1969, making it 56 years old in 2025.

What condition is IH 35W Nbml over FM 407 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 August 2023.

How much traffic does IH 35W Nbml over FM 407 carry?

About 30,909 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is IH 35W Nbml over FM 407?

The structure is 195 ft (59.4 m) long with a longest span of 65 ft (19.8 m) and a deck 42 ft wide.

Who owns IH 35W Nbml over FM 407?

It is owned by the State Highway Agency.