US Bridges

Nasa RD 1 over Hcfcd Ditch A-109

Good

Harris County, Texas · 0.45 MI SW of SH 3 · Structure no. 121020098101033

Built
2008
17 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
34,130
2024 count
Owner
State
State Highway Agency

About this bridge

Nasa RD 1 over Hcfcd Ditch A-109 is a concrete culvert carrying Nasa RD 1 over Hcfcd Ditch A-109 in Harris County, Texas. It was built in 2008, so it is 17 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 34,130 vehicles a day, roughly 3% of them trucks, projected to reach 65,842 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNasa RD 1
CrossesHcfcd Ditch A-109
Location0.45 MI SW of SH 3
RouteState Highway 9999
StateTexas
Coordinates29.52597, -95.11742
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,130 (2024)
Projected traffic65,842 by 2042
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Nasa RD 1 over Hcfcd Ditch A-109 built?

It was built in 2008, making it 17 years old in 2025.

What condition is Nasa RD 1 over Hcfcd Ditch A-109 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 2024.

How much traffic does Nasa RD 1 over Hcfcd Ditch A-109 carry?

About 34,130 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Nasa RD 1 over Hcfcd Ditch A-109?

The structure is 29 ft (8.8 m) long with a longest span of 8 ft (2.4 m).

Who owns Nasa RD 1 over Hcfcd Ditch A-109?

It is owned by the State Highway Agency.