US Bridges

CR 172 over Drainage Ditch

Fair

Brazoria County, Texas · 0.25 MI SW of CR 185 · Structure no. 120200AA0787002

Built
2011
14 years old
Condition
Fair
inspected October 2023
Type
Other
Prestressed Concrete
Length
75 ft
3 main spans
Daily traffic
2,219
2016 count
Owner
County
County Highway Agency

About this bridge

CR 172 over Drainage Ditch is a prestressed concrete other carrying CR 172 over Drainage Ditch in Brazoria County, Texas. It was built in 2011, so it is 14 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,219 vehicles a day, projected to reach 2,500 by 2031. The structure is 75 ft (22.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 172
CrossesDrainage Ditch
Location0.25 MI SW of CR 185
RouteCounty Highway 172
CountyBrazoria County
StateTexas
Coordinates29.3749, -95.28206
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,219 (2016)
Projected traffic2,500 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 CR 172 over Drainage Ditch built?

It was built in 2011, making it 14 years old in 2025.

What condition is CR 172 over Drainage Ditch 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 October 2023.

How much traffic does CR 172 over Drainage Ditch carry?

About 2,219 vehicles per day (2016 count).

How long is CR 172 over Drainage Ditch?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns CR 172 over Drainage Ditch?

It is owned by the County Highway Agency.