US Bridges

SH 249 over Unamed Mill Creek Trib.

Good

Montgomery County, Texas · 0.64 MI SE of FM 1488 · Structure no. 121700363501063

Built
2021
4 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
27 ft
4 main spans
Daily traffic
21,400
2020 count
Owner
State
State Highway Agency

About this bridge

SH 249 over Unamed Mill Creek Trib. is a concrete culvert carrying SH 249 over Unamed Mill Creek Trib. in Montgomery County, Texas. It was built in 2021, so it is 4 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 21,400 vehicles a day, roughly 5% of them trucks, projected to reach 31,400 by 2040. The structure is 27 ft (8.2 m) long and 368 ft wide.

CarriesSH 249
CrossesUnamed Mill Creek Trib.
Location0.64 MI SE of FM 1488
RouteState Highway 249
StateTexas
Coordinates30.21599, -95.71841
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHL 93
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width368 ft (112.2 m)
Roadway width190 ft (57.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,400 (2020)
Projected traffic31,400 by 2040
Trucks5%
Lanes on structure9
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 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 249 over Unamed Mill Creek Trib. built?

It was built in 2021, making it 4 years old in 2025.

What condition is SH 249 over Unamed Mill Creek Trib. 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 December 2024.

How much traffic does SH 249 over Unamed Mill Creek Trib. carry?

About 21,400 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is SH 249 over Unamed Mill Creek Trib.?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 368 ft wide.

Who owns SH 249 over Unamed Mill Creek Trib.?

It is owned by the State Highway Agency.