US Bridges

Port Dr. over Taylor Bayou

FairPosted for load

Harris County, Texas · 0.4 MI W of SH 146 · Structure no. 121020AA3274001

Built
1970
55 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
649 ft
19 main spans
Daily traffic
3,289
2020 count
Owner
County
County Highway Agency

About this bridge

Port Dr. over Taylor Bayou is a concrete tee beam carrying Port Dr. over Taylor Bayou in Harris County, Texas. It was built in 1970, so it is 55 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 5 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 3,289 vehicles a day, projected to reach 1,905 by 2028. The structure is 649 ft (197.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPort Dr.
CrossesTaylor Bayou
Location0.4 MI W of SH 146
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.6042, -95.04125
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
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 typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans19
Design loadUnknown
Structure length649 ft (197.8 m)
Longest span34 ft (10.4 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,289 (2020)
Projected traffic1,905 by 2028
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$43,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Port Dr. over Taylor Bayou built?

It was built in 1970, making it 55 years old in 2025.

What condition is Port Dr. over Taylor 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 November 2023.

How much traffic does Port Dr. over Taylor Bayou carry?

About 3,289 vehicles per day (2020 count).

How long is Port Dr. over Taylor Bayou?

The structure is 649 ft (197.8 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.

Who owns Port Dr. over Taylor Bayou?

It is owned by the County Highway Agency.