US Bridges

SH 36 SB over Mill Creek Relief

Fair

Austin County, Texas · 3.9 MI NW of FM 331 · Structure no. 130080018702420

Built
2013
12 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
810 ft
6 main spans
Daily traffic
3,818
2020 count
Owner
State
State Highway Agency

About this bridge

SH 36 SB over Mill Creek Relief is a prestressed concrete stringer/multi-beam or girder carrying SH 36 SB over Mill Creek Relief in Austin County, Texas. It was built in 2013, so it is 12 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 3,818 vehicles a day, roughly 21% of them trucks, projected to reach 4,450 by 2033. The structure is 810 ft (246.9 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSH 36 SB
CrossesMill Creek Relief
Location3.9 MI NW of FM 331
RouteState Highway 36
StateTexas
Coordinates29.88581, -96.20998
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans6
Design loadHL 93
Structure length810 ft (246.9 m)
Longest span135 ft (41.1 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,818 (2020)
Projected traffic4,450 by 2033
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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 SH 36 SB over Mill Creek Relief built?

It was built in 2013, making it 12 years old in 2025.

What condition is SH 36 SB over Mill Creek Relief 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 SH 36 SB over Mill Creek Relief carry?

About 3,818 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is SH 36 SB over Mill Creek Relief?

The structure is 810 ft (246.9 m) long with a longest span of 135 ft (41.1 m) and a deck 40 ft wide.

Who owns SH 36 SB over Mill Creek Relief?

It is owned by the State Highway Agency.