US Bridges

Jones RD over Ciwa Canal

Fair

Harris County, Texas · 0.10 MI E of Thompson RD · Structure no. 121020AA3462002

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
121 ft
3 main spans
Daily traffic
1,890
2022 count
Owner
County
County Highway Agency

About this bridge

Jones RD over Ciwa Canal is a prestressed concrete box beam or girders - multiple carrying Jones RD over Ciwa Canal in Harris County, Texas. It was built in 1970, so it is 55 years old, older 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 1,890 vehicles a day, roughly 3% of them trucks, projected to reach 2,646 by 2042. The structure is 121 ft (36.9 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesJones RD
CrossesCiwa Canal
Location0.10 MI E of Thompson RD
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.80764, -95.03053
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length121 ft (36.9 m)
Longest span43 ft (13.1 m)
Deck width34 ft (10.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,890 (2022)
Projected traffic2,646 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Jones RD over Ciwa Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is Jones RD over Ciwa Canal 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 August 2023.

How much traffic does Jones RD over Ciwa Canal carry?

About 1,890 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Jones RD over Ciwa Canal?

The structure is 121 ft (36.9 m) long with a longest span of 43 ft (13.1 m) and a deck 34 ft wide.

Who owns Jones RD over Ciwa Canal?

It is owned by the County Highway Agency.