US Bridges

Mason RD NB over Buffalo Bayou Tributary

Fair

Fort Bend County, Texas · 0.65 MI N of FM 1093 · Structure no. 120800AA1116001

Built
1991
34 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
228 ft
3 main spans
Daily traffic
1,001
2009 count
Owner
County
County Highway Agency

About this bridge

Mason RD NB over Buffalo Bayou Tributary is a prestressed concrete box beam or girders - multiple carrying Mason RD NB over Buffalo Bayou Tributary in Fort Bend County, Texas. It was built in 1991, so it is 34 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 1,001 vehicles a day, projected to reach 2,000 by 2026. The structure is 228 ft (69.5 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMason RD NB
CrossesBuffalo Bayou Tributary
Location0.65 MI N of FM 1093
RouteCounty Highway 0
CountyFort Bend County
StateTexas
Coordinates29.71278, -95.74406
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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 spans3
Design loadUnknown
Structure length228 ft (69.5 m)
Longest span76 ft (23.2 m)
Deck width33 ft (10 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,001 (2009)
Projected traffic2,000 by 2026
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$14,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mason RD NB over Buffalo Bayou Tributary built?

It was built in 1991, making it 34 years old in 2025.

What condition is Mason RD NB over Buffalo Bayou Tributary 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 September 2023.

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

About 1,001 vehicles per day (2009 count).

How long is Mason RD NB over Buffalo Bayou Tributary?

The structure is 228 ft (69.5 m) long with a longest span of 76 ft (23.2 m) and a deck 33 ft wide.

Who owns Mason RD NB over Buffalo Bayou Tributary?

It is owned by the County Highway Agency.