US Bridges

US 90A over Chimney Rock Road

Good

Harris County, Texas · US 90A at Chimney Rock RD · Structure no. 121020002709313

Built
2007
18 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,419 ft
3 main spans
Daily traffic
95,631
2023 count
Owner
State
State Highway Agency

About this bridge

US 90A over Chimney Rock Road is a steel continuous stringer/multi-beam or girder carrying US 90A over Chimney Rock Road in Harris County, Texas. It was built in 2007, so it is 18 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 95,631 vehicles a day, roughly 2% of them trucks, projected to reach 141,534 by 2042. The structure is 1,419 ft (432.5 m) long and 93 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 90A
CrossesChimney Rock Road
LocationUS 90A at Chimney Rock RD
RouteState Highway 90
CountyHarris County
StateTexas
Coordinates29.6402, -95.48242
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+8 approach)
Design loadHS 20
Structure length1,419 ft (432.5 m)
Longest span315 ft (96 m)
Deck width93 ft (28.3 m)
Roadway width77 ft (23.4 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic95,631 (2023)
Projected traffic141,534 by 2042
Trucks2%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 90A over Chimney Rock Road built?

It was built in 2007, making it 18 years old in 2025.

What condition is US 90A over Chimney Rock Road 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 US 90A over Chimney Rock Road carry?

About 95,631 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is US 90A over Chimney Rock Road?

The structure is 1,419 ft (432.5 m) long with a longest span of 315 ft (96 m) and a deck 93 ft wide.

Who owns US 90A over Chimney Rock Road?

It is owned by the State Highway Agency.