US Bridges

Colonial Pkwy EB over Mason CR

Fair

Harris County, Texas · 0.55 MI W of N Mason RD · Structure no. 121020AA0143001

Built
1982
43 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
190 ft
5 main spans
Daily traffic
2,972
2016 count
Owner
County
County Highway Agency

About this bridge

Colonial Pkwy EB over Mason CR is a prestressed concrete box beam or girders - multiple carrying Colonial Pkwy EB over Mason CR in Harris County, Texas. It was built in 1982, so it is 43 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 2,972 vehicles a day, projected to reach 2,000 by 2033. The structure is 190 ft (57.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesColonial Pkwy EB
CrossesMason CR
Location0.55 MI W of N Mason RD
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.79406, -95.76083
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 length190 ft (57.9 m)
Longest span38 ft (11.6 m)
Deck width31 ft (9.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,972 (2016)
Projected traffic2,000 by 2033
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$11,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Colonial Pkwy EB over Mason CR built?

It was built in 1982, making it 43 years old in 2025.

What condition is Colonial Pkwy EB over Mason CR 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 Colonial Pkwy EB over Mason CR carry?

About 2,972 vehicles per day (2016 count).

How long is Colonial Pkwy EB over Mason CR?

The structure is 190 ft (57.9 m) long with a longest span of 38 ft (11.6 m) and a deck 31 ft wide.

Who owns Colonial Pkwy EB over Mason CR?

It is owned by the County Highway Agency.