US Bridges

SH 36 NB over Mill Creek

Fair

Austin County, Texas · 3.6 MI S of FM 2429 · Structure no. 130080018702036

Built
2000
25 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,550 ft
13 main spans
Daily traffic
3,843
2020 count
Owner
State
State Highway Agency

About this bridge

SH 36 NB over Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 36 NB over Mill Creek in Austin County, Texas. It was built in 2000, so it is 25 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 3,843 vehicles a day, roughly 21% of them trucks, projected to reach 4,450 by 2033. The structure is 1,550 ft (472.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 36 NB
CrossesMill Creek
Location3.6 MI S of FM 2429
RouteState Highway 36
CountyAustin County
StateTexas
Coordinates29.88463, -96.20857
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable 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

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans13 (+3 approach)
Design loadHS 20
Structure length1,550 ft (472.4 m)
Longest span112 ft (34.1 m)
Deck width45 ft (13.8 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,843 (2020)
Projected traffic4,450 by 2033
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 NB over Mill Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is SH 36 NB over Mill 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 February 2023.

How much traffic does SH 36 NB over Mill Creek carry?

About 3,843 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is SH 36 NB over Mill Creek?

The structure is 1,550 ft (472.4 m) long with a longest span of 112 ft (34.1 m) and a deck 45 ft wide.

Who owns SH 36 NB over Mill Creek?

It is owned by the State Highway Agency.