US Bridges

IH 35 Nbml over Four Mile Creek

Good

Comal County, Texas · 4.4 MI SW of FM 725 · Structure no. 150460001605214

Built
2001
24 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
151 ft
7 main spans
Daily traffic
66,444
2019 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbml over Four Mile Creek is a concrete continuous slab carrying IH 35 Nbml over Four Mile Creek in Comal County, Texas. It was built in 2001, so it is 24 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 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 66,444 vehicles a day, roughly 17% of them trucks, projected to reach 62,890 by 2030. The structure is 151 ft (46 m) long and 60 ft wide.

CarriesIH 35 Nbml
CrossesFour Mile Creek
Location4.4 MI SW of FM 725
RouteInterstate 35
StateTexas
Coordinates29.66254, -98.17108
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length151 ft (46 m)
Longest span21 ft (6.4 m)
Deck width60 ft (18.3 m)
Roadway width57 ft (17.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,444 (2019)
Projected traffic62,890 by 2030
Trucks17%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 Four Mile Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is IH 35 Nbml over Four Mile Creek 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 June 2024.

How much traffic does IH 35 Nbml over Four Mile Creek carry?

About 66,444 vehicles per day (2019 count), of which roughly 17% are trucks.

How long is IH 35 Nbml over Four Mile Creek?

The structure is 151 ft (46 m) long with a longest span of 21 ft (6.4 m) and a deck 60 ft wide.

Who owns IH 35 Nbml over Four Mile Creek?

It is owned by the State Highway Agency.