US Bridges

Brazoria CR 743 over Linnville Bayou

FairPosted for load

Matagorda County, Texas · 2.7 MI SW of FM 524 · Structure no. 131580AA0463001

Built
1992
33 years old
Condition
Fair
inspected September 2024
Type
Other
Steel Continuous
Length
89 ft
1 main span
Daily traffic
135
2022 count
Owner
County
County Highway Agency

About this bridge

Brazoria CR 743 over Linnville Bayou is a steel continuous other carrying Brazoria CR 743 over Linnville Bayou in Matagorda County, Texas. It was built in 1992, so it is 33 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 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 135 vehicles a day, roughly 3% of them trucks, projected to reach 165 by 2042. The structure is 89 ft (27.1 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesBrazoria CR 743
CrossesLinnville Bayou
Location2.7 MI SW of FM 524
RouteCounty Highway 743
CountyMatagorda County
StateTexas
Coordinates29.08963, -95.81762
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
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 6 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating9 US tons
Inventory rating5 US tons

Structure

Structure typeOther
MaterialSteel Continuous
DeckSteel plate
Main spans1 (+2 approach)
Design loadUnknown
Structure length89 ft (27.1 m)
Longest span66 ft (20.1 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135 (2022)
Projected traffic165 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Brazoria CR 743 over Linnville Bayou built?

It was built in 1992, making it 33 years old in 2025.

What condition is Brazoria CR 743 over Linnville 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 September 2024.

How much traffic does Brazoria CR 743 over Linnville Bayou carry?

About 135 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Brazoria CR 743 over Linnville Bayou?

The structure is 89 ft (27.1 m) long with a longest span of 66 ft (20.1 m) and a deck 23 ft wide.

Who owns Brazoria CR 743 over Linnville Bayou?

It is owned by the County Highway Agency.