US Bridges

US 59 Sbfr over Alcorn Bayou

Good

Fort Bend County, Texas · 2.0 MI SW of SH 6 · Structure no. 120800002712536

Built
2010
15 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
52,000
2012 count
Owner
State
State Highway Agency

About this bridge

US 59 Sbfr over Alcorn Bayou is a concrete culvert carrying US 59 Sbfr over Alcorn Bayou in Fort Bend County, Texas. It was built in 2010, so it is 15 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 52,000 vehicles a day, roughly 10% of them trucks, projected to reach 104,000 by 2032. The structure is 21 ft (6.4 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 59 Sbfr
CrossesAlcorn Bayou
Location2.0 MI SW of SH 6
RouteU.S. Route 59
StateTexas
Coordinates29.58066, -95.64944
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span8 ft (2.4 m)
Deck width36 ft (11.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,000 (2012)
Projected traffic104,000 by 2032
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 59 Sbfr over Alcorn Bayou built?

It was built in 2010, making it 15 years old in 2025.

What condition is US 59 Sbfr over Alcorn Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does US 59 Sbfr over Alcorn Bayou carry?

About 52,000 vehicles per day (2012 count), of which roughly 10% are trucks.

How long is US 59 Sbfr over Alcorn Bayou?

The structure is 21 ft (6.4 m) long with a longest span of 8 ft (2.4 m) and a deck 36 ft wide.

Who owns US 59 Sbfr over Alcorn Bayou?

It is owned by the State Highway Agency.