US Bridges

Mc Dermed ST over Willow Waterhole Bayou

FairPosted for load

Harris County, Texas · 0.3 MI E of Post Oak RD · Structure no. 121020B43449507

Built
1958
67 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
86 ft
3 main spans
Daily traffic
2,080
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mc Dermed ST over Willow Waterhole Bayou is a prestressed concrete stringer/multi-beam or girder carrying Mc Dermed ST over Willow Waterhole Bayou in Harris County, Texas. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 2,080 vehicles a day, projected to reach 2,700 by 2033. The structure is 86 ft (26.2 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMc Dermed ST
CrossesWillow Waterhole Bayou
Location0.3 MI E of Post Oak RD
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.66844, -95.45718
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length86 ft (26.2 m)
Longest span28 ft (8.5 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,080 (2013)
Projected traffic2,700 by 2033
Trucks0%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mc Dermed ST over Willow Waterhole Bayou built?

It was built in 1958, making it 67 years old in 2025.

What condition is Mc Dermed ST over Willow Waterhole Bayou 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 Mc Dermed ST over Willow Waterhole Bayou carry?

About 2,080 vehicles per day (2013 count).

How long is Mc Dermed ST over Willow Waterhole Bayou?

The structure is 86 ft (26.2 m) long with a longest span of 28 ft (8.5 m) and a deck 34 ft wide.

Who owns Mc Dermed ST over Willow Waterhole Bayou?

It is owned by the City or Municipal Highway Agency.