US Bridges

Birnham Woods DR over Woodsons Gully

Good

Montgomery County, Texas · 1.45 MI N of SH 99 · Structure no. 121700AA9009011

Built
2014
11 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
260 ft
4 main spans
Daily traffic
2,000
2016 count
Owner
County
County Highway Agency

About this bridge

Birnham Woods DR over Woodsons Gully is a prestressed concrete box beam or girders - multiple carrying Birnham Woods DR over Woodsons Gully in Montgomery County, Texas. It was built in 2014, so it is 11 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 2,000 vehicles a day, roughly 1% of them trucks, projected to reach 3,000 by 2036. The structure is 260 ft (79.2 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesBirnham Woods DR
CrossesWoodsons Gully
Location1.45 MI N of SH 99
RouteCounty Highway 0
CountyMontgomery County
StateTexas
Coordinates30.13594, -95.3853
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length260 ft (79.2 m)
Longest span80 ft (24.4 m)
Deck width40 ft (12.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2016)
Projected traffic3,000 by 2036
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Birnham Woods DR over Woodsons Gully built?

It was built in 2014, making it 11 years old in 2025.

What condition is Birnham Woods DR over Woodsons Gully 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 2023.

How much traffic does Birnham Woods DR over Woodsons Gully carry?

About 2,000 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Birnham Woods DR over Woodsons Gully?

The structure is 260 ft (79.2 m) long with a longest span of 80 ft (24.4 m) and a deck 40 ft wide.

Who owns Birnham Woods DR over Woodsons Gully?

It is owned by the County Highway Agency.