US Bridges

SB Birnham Woods over Drainage Ditch

Fair

Montgomery County, Texas · 0.66 MI NW of Riley Fuzze · Structure no. 121700AA9009010

Built
2010
15 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
9,382
2021 count
Owner
County
County Highway Agency

About this bridge

SB Birnham Woods over Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying SB Birnham Woods over Drainage Ditch in Montgomery County, Texas. It was built in 2010, so it is 15 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 9,382 vehicles a day, roughly 2% of them trucks, projected to reach 9,675 by 2042. The structure is 110 ft (33.5 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSB Birnham Woods
CrossesDrainage Ditch
Location0.66 MI NW of Riley Fuzze
RouteCounty Highway 0
StateTexas
Coordinates30.12374, -95.38486
Functional classUrban Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length110 ft (33.5 m)
Longest span108 ft (32.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,382 (2021)
Projected traffic9,675 by 2042
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 SB Birnham Woods over Drainage Ditch built?

It was built in 2010, making it 15 years old in 2025.

What condition is SB Birnham Woods over Drainage Ditch 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 December 2023.

How much traffic does SB Birnham Woods over Drainage Ditch carry?

About 9,382 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is SB Birnham Woods over Drainage Ditch?

The structure is 110 ft (33.5 m) long with a longest span of 108 ft (32.9 m) and a deck 30 ft wide.

Who owns SB Birnham Woods over Drainage Ditch?

It is owned by the County Highway Agency.