US Bridges

IH 35 Ml & FR over Boggy Creek

Fair

Travis County, Texas · 1.0 MI N of Slaughter LN · Structure no. 142270001513127

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
45 ft
4 main spans
Daily traffic
125,554
2020 count
Owner
State
State Highway Agency

About this bridge

IH 35 Ml & FR over Boggy Creek is a concrete culvert carrying IH 35 Ml & FR over Boggy Creek in Travis County, Texas. It was built in 1957, so it is 68 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 125,554 vehicles a day, roughly 10% of them trucks, projected to reach 194,010 by 2036. The structure is 45 ft (13.7 m) long.

Location

Open in Google Maps
CarriesIH 35 Ml & FR
CrossesBoggy Creek
Location1.0 MI N of Slaughter LN
RouteState Highway 35
CountyTravis County
StateTexas
Coordinates30.17948, -97.77791
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadOther
Structure length45 ft (13.7 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 traffic125,554 (2020)
Projected traffic194,010 by 2036
Trucks10%
Lanes on structure10
Traffic directionTwo-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 35 Ml & FR over Boggy Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is IH 35 Ml & FR over Boggy 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 August 2023.

How much traffic does IH 35 Ml & FR over Boggy Creek carry?

About 125,554 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is IH 35 Ml & FR over Boggy Creek?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m).

Who owns IH 35 Ml & FR over Boggy Creek?

It is owned by the State Highway Agency.