US Bridges

IH 35 over Flat Creek

Fair

McLennan County, Texas · 1.20 MI SW of SH 6 · Structure no. 091610001501517

Built
2011
14 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
63 ft
5 main spans
Daily traffic
90,447
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 over Flat Creek is a concrete culvert carrying IH 35 over Flat Creek in McLennan County, Texas. It was built in 2011, so it is 14 years old, younger 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 90,447 vehicles a day, roughly 25% of them trucks, projected to reach 91,030 by 2033. The structure is 63 ft (19.2 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesIH 35
CrossesFlat Creek
Location1.20 MI SW of SH 6
RouteInterstate 35
StateTexas
Coordinates31.47714, -97.16068
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90,447 (2023)
Projected traffic91,030 by 2033
Trucks25%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 35 over Flat Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is IH 35 over Flat Creek 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 November 2024.

How much traffic does IH 35 over Flat Creek carry?

About 90,447 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is IH 35 over Flat Creek?

The structure is 63 ft (19.2 m) long with a longest span of 10 ft (3 m).

Who owns IH 35 over Flat Creek?

It is owned by the State Highway Agency.