US Bridges

E Nasa Parkway over Hl&p Discharge Ditch #2

Good

Harris County, Texas · 0.30 MI SW of FM 270 · Structure no. 121020098101032

Built
1960
65 years old, rebuilt 2008
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
21,258
2023 count
Owner
State
State Highway Agency

About this bridge

E Nasa Parkway over Hl&p Discharge Ditch #2 is a concrete culvert carrying E Nasa Parkway over Hl&p Discharge Ditch #2 in Harris County, Texas. It was built in 1960 and reconstructed in 2008, so it is 65 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 21,258 vehicles a day, roughly 8% of them trucks, projected to reach 29,761 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE Nasa Parkway
CrossesHl&p Discharge Ditch #2
Location0.30 MI SW of FM 270
RouteState Highway 9999
StateTexas
Coordinates29.54295, -95.11014
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,258 (2023)
Projected traffic29,761 by 2042
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 E Nasa Parkway over Hl&p Discharge Ditch #2 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2008.

What condition is E Nasa Parkway over Hl&p Discharge Ditch #2 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 E Nasa Parkway over Hl&p Discharge Ditch #2 carry?

About 21,258 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is E Nasa Parkway over Hl&p Discharge Ditch #2?

The structure is 27 ft (8.2 m) long with a longest span of 7 ft (2.1 m).

Who owns E Nasa Parkway over Hl&p Discharge Ditch #2?

It is owned by the State Highway Agency.