US Bridges

Mason RD NB over Buffalo Bayou

Good

Fort Bend County, Texas · 1.80 MI N of FM 1093 · Structure no. 120800AA1116003

Built
1988
37 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
203 ft
5 main spans
Daily traffic
8,675
2016 count
Owner
County
County Highway Agency

About this bridge

Mason RD NB over Buffalo Bayou is a prestressed concrete box beam or girders - multiple carrying Mason RD NB over Buffalo Bayou in Fort Bend County, Texas. It was built in 1988, so it is 37 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 8,675 vehicles a day, projected to reach 3,120 by 2027. The structure is 203 ft (61.9 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMason RD NB
CrossesBuffalo Bayou
Location1.80 MI N of FM 1093
RouteCounty Highway 0
CountyFort Bend County
StateTexas
Coordinates29.72681, -95.75577
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 adequacy7: Better than 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, cast-in-place
Main spans5
Design loadUnknown
Structure length203 ft (61.9 m)
Longest span41 ft (12.5 m)
Deck width33 ft (10 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,675 (2016)
Projected traffic3,120 by 2027
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$13,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mason RD NB over Buffalo Bayou built?

It was built in 1988, making it 37 years old in 2025.

What condition is Mason RD NB over Buffalo Bayou 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 August 2023.

How much traffic does Mason RD NB over Buffalo Bayou carry?

About 8,675 vehicles per day (2016 count).

How long is Mason RD NB over Buffalo Bayou?

The structure is 203 ft (61.9 m) long with a longest span of 41 ft (12.5 m) and a deck 33 ft wide.

Who owns Mason RD NB over Buffalo Bayou?

It is owned by the County Highway Agency.