US Bridges

Tyrrell Park RD over Willow Marsh Bayou

FairPosted for load

Jefferson County, Texas · 1.4 MI S of SH 124 · Structure no. 201240AA0275002

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
150 ft
6 main spans
Daily traffic
175
2016 count
Owner
County
County Highway Agency

About this bridge

Tyrrell Park RD over Willow Marsh Bayou is a prestressed concrete box beam or girders - multiple carrying Tyrrell Park RD over Willow Marsh Bayou in Jefferson 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 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 175 vehicles a day, projected to reach 700 by 2035. The structure is 150 ft (45.7 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesTyrrell Park RD
CrossesWillow Marsh Bayou
Location1.4 MI S of SH 124
RouteCounty Highway 0
CountyJefferson County
StateTexas
Coordinates30.00231, -94.15509
Functional classRural 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2016)
Projected traffic700 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Tyrrell Park RD over Willow Marsh Bayou built?

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

What condition is Tyrrell Park RD over Willow Marsh 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 July 2023.

How much traffic does Tyrrell Park RD over Willow Marsh Bayou carry?

About 175 vehicles per day (2016 count).

How long is Tyrrell Park RD over Willow Marsh Bayou?

The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.

Who owns Tyrrell Park RD over Willow Marsh Bayou?

It is owned by the County Highway Agency.