US Bridges

Birdwell LN over Big Spring Draw

Fair

Howard County, Texas · 0.20 MI S of FM 700 · Structure no. 081150B05560002

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
3,724
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Birdwell LN over Big Spring Draw is a concrete culvert carrying Birdwell LN over Big Spring Draw in Howard County, Texas. It was built in 1959, so it is 66 years old, older 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 3,724 vehicles a day, roughly 3% of them trucks, projected to reach 5,817 by 2040. The structure is 35 ft (10.7 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBirdwell LN
CrossesBig Spring Draw
Location0.20 MI S of FM 700
RouteCity Street 0
StateTexas
Coordinates32.23945, -101.44804
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width61 ft (18.7 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,724 (2020)
Projected traffic5,817 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Birdwell LN over Big Spring Draw built?

It was built in 1959, making it 66 years old in 2025.

What condition is Birdwell LN over Big Spring Draw 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 April 2024.

How much traffic does Birdwell LN over Big Spring Draw carry?

About 3,724 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Birdwell LN over Big Spring Draw?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 61 ft wide.

Who owns Birdwell LN over Big Spring Draw?

It is owned by the City or Municipal Highway Agency.