US Bridges

CR 149 over Mustang Bayou

Good

Brazoria County, Texas · 0.25 MI NE of SH 6 · Structure no. 120200D00561001

Built
2015
10 years old
Condition
Good
inspected December 2023
Type
Slab
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
6,296
2010 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

CR 149 over Mustang Bayou is a prestressed concrete slab carrying CR 149 over Mustang Bayou in Brazoria County, Texas. It was built in 2015, so it is 10 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 6,296 vehicles a day, projected to reach 8,628 by 2030. The structure is 75 ft (22.9 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 149
CrossesMustang Bayou
Location0.25 MI NE of SH 6
RouteCity Street 0
CountyBrazoria County
StateTexas
Coordinates29.44115, -95.26927
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 spans1 (+1 approach)
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span50 ft (15.2 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,296 (2010)
Projected traffic8,628 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$179,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 149 over Mustang Bayou built?

It was built in 2015, making it 10 years old in 2025.

What condition is CR 149 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 December 2023.

How much traffic does CR 149 over Mustang Bayou carry?

About 6,296 vehicles per day (2010 count).

How long is CR 149 over Mustang Bayou?

The structure is 75 ft (22.9 m) long with a longest span of 50 ft (15.2 m) and a deck 39 ft wide.

Who owns CR 149 over Mustang Bayou?

It is owned by the Town or Township Highway Agency.