US Bridges

Spears RD (cr 872) over Mustang Bayou

Good

Brazoria County, Texas · 0.50 MI S of Bahler Road · Structure no. 120200AA2027002

Built
2017
8 years old
Condition
Good
inspected August 2023
Type
Slab
Prestressed Concrete
Length
75 ft
3 main spans
Daily traffic
150
2017 count
Owner
County
County Highway Agency

About this bridge

Spears RD (cr 872) over Mustang Bayou is a prestressed concrete slab carrying Spears RD (cr 872) over Mustang Bayou in Brazoria County, Texas. It was built in 2017, so it is 8 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 150 vehicles a day, projected to reach 250 by 2037. The structure is 75 ft (22.9 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesSpears RD (cr 872)
CrossesMustang Bayou
Location0.50 MI S of Bahler Road
RouteCounty Highway 872
CountyBrazoria County
StateTexas
Coordinates29.51832, -95.35688
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2017)
Projected traffic250 by 2037
Trucks0%
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 Spears RD (cr 872) over Mustang Bayou built?

It was built in 2017, making it 8 years old in 2025.

What condition is Spears RD (cr 872) over Mustang 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 August 2023.

How much traffic does Spears RD (cr 872) over Mustang Bayou carry?

About 150 vehicles per day (2017 count).

How long is Spears RD (cr 872) over Mustang Bayou?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.

Who owns Spears RD (cr 872) over Mustang Bayou?

It is owned by the County Highway Agency.