US Bridges

Tidwell RD over Drainage Ditch

Fair

Harris County, Texas · 0.6 MI N of Old US 90 · Structure no. 121020325603063

Built
1989
36 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
17,584
2022 count
Owner
State
State Highway Agency

About this bridge

Tidwell RD over Drainage Ditch is a concrete culvert carrying Tidwell RD over Drainage Ditch in Harris County, Texas. It was built in 1989, so it is 36 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 17,584 vehicles a day, roughly 7% of them trucks, projected to reach 24,618 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTidwell RD
CrossesDrainage Ditch
Location0.6 MI N of Old US 90
RouteState Highway 8
CountyHarris County
StateTexas
Coordinates29.85227, -95.18688
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,584 (2022)
Projected traffic24,618 by 2042
Trucks7%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Tidwell RD over Drainage Ditch built?

It was built in 1989, making it 36 years old in 2025.

What condition is Tidwell RD 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 August 2024.

How much traffic does Tidwell RD over Drainage Ditch carry?

About 17,584 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Tidwell RD over Drainage Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 9 ft (2.7 m).

Who owns Tidwell RD over Drainage Ditch?

It is owned by the State Highway Agency.