US Bridges

Dairy Ashford SB over Buffalo Byu

Fair

Harris County, Texas · 1.50 MI S of IH 10 · Structure no. 121020B17911002

Built
1978
47 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
177 ft
5 main spans
Daily traffic
37,190
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dairy Ashford SB over Buffalo Byu is a prestressed concrete box beam or girders - multiple carrying Dairy Ashford SB over Buffalo Byu in Harris County, Texas. It was built in 1978, so it is 47 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 37,190 vehicles a day, projected to reach 40,000 by 2033. The structure is 177 ft (54 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesDairy Ashford SB
CrossesBuffalo Byu
Location1.50 MI S of IH 10
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.7619, -95.60624
Functional classUrban Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans5
Design loadUnknown
Structure length177 ft (54 m)
Longest span35 ft (10.7 m)
Deck width33 ft (10.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,190 (2013)
Projected traffic40,000 by 2033
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$10,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dairy Ashford SB over Buffalo Byu built?

It was built in 1978, making it 47 years old in 2025.

What condition is Dairy Ashford SB over Buffalo Byu 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 August 2023.

How much traffic does Dairy Ashford SB over Buffalo Byu carry?

About 37,190 vehicles per day (2013 count).

How long is Dairy Ashford SB over Buffalo Byu?

The structure is 177 ft (54 m) long with a longest span of 35 ft (10.7 m) and a deck 33 ft wide.

Who owns Dairy Ashford SB over Buffalo Byu?

It is owned by the City or Municipal Highway Agency.