US Bridges

IH 35 over US 77 SB & Conn

Fair

Denton County, Texas · 2.30 MI N of US 380 · Structure no. 180610019503040

Built
1958
67 years old, rebuilt 1989
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
120 ft
3 main spans
Daily traffic
77,293
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 over US 77 SB & Conn is a steel continuous stringer/multi-beam or girder carrying IH 35 over US 77 SB & Conn in Denton County, Texas. It was built in 1958 and reconstructed in 1989, so it is 67 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 77,293 vehicles a day, roughly 12% of them trucks, projected to reach 73,160 by 2033. The structure is 120 ft (36.6 m) long and 98 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIH 35
CrossesUS 77 SB & Conn
Location2.30 MI N of US 380
RouteInterstate 35
StateTexas
Coordinates33.26369, -97.1779
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length120 ft (36.6 m)
Longest span45 ft (13.7 m)
Deck width98 ft (29.9 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77,293 (2023)
Projected traffic73,160 by 2033
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 35 over US 77 SB & Conn built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1989.

What condition is IH 35 over US 77 SB & Conn 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 35 over US 77 SB & Conn carry?

About 77,293 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is IH 35 over US 77 SB & Conn?

The structure is 120 ft (36.6 m) long with a longest span of 45 ft (13.7 m) and a deck 98 ft wide.

Who owns IH 35 over US 77 SB & Conn?

It is owned by the State Highway Agency.