US Bridges

IH 35 Nbml over Bus 77

Good

McLennan County, Texas · 1.43 MI N of Brazos River · Structure no. 091610001501740

Built
2022
3 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
394 ft
3 main spans
Daily traffic
96,378
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbml over Bus 77 is a steel continuous box beam or girders - multiple carrying IH 35 Nbml over Bus 77 in McLennan County, Texas. It was built in 2022, so it is 3 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 96,378 vehicles a day, roughly 23% of them trucks, projected to reach 134,929 by 2042. The structure is 394 ft (120.1 m) long and 72 ft wide.

CarriesIH 35 Nbml
CrossesBus 77
Location1.43 MI N of Brazos River
RouteInterstate 35
StateTexas
Coordinates31.5768, -97.11256
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length394 ft (120.1 m)
Longest span164 ft (50 m)
Deck width72 ft (21.9 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96,378 (2023)
Projected traffic134,929 by 2042
Trucks23%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 35 Nbml over Bus 77 built?

It was built in 2022, making it 3 years old in 2025.

What condition is IH 35 Nbml over Bus 77 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 April 2023.

How much traffic does IH 35 Nbml over Bus 77 carry?

About 96,378 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is IH 35 Nbml over Bus 77?

The structure is 394 ft (120.1 m) long with a longest span of 164 ft (50 m) and a deck 72 ft wide.

Who owns IH 35 Nbml over Bus 77?

It is owned by the State Highway Agency.