US Bridges

Montrose Blvd over Allen Parkway

Fair

Harris County, Texas · 1.3 MI S of IH 10 · Structure no. 121020B02505004

Built
1967
58 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
75 ft
2 main spans
Daily traffic
6,000
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Montrose Blvd over Allen Parkway is a concrete continuous slab carrying Montrose Blvd over Allen Parkway in Harris County, Texas. It was built in 1967, so it is 58 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 6,000 vehicles a day, projected to reach 6,500 by 2031. The structure is 75 ft (22.9 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMontrose Blvd
CrossesAllen Parkway
Location1.3 MI S of IH 10
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.76147, -95.39225
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span38 ft (11.6 m)
Deck width94 ft (28.8 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2011)
Projected traffic6,500 by 2031
Trucks0%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Montrose Blvd over Allen Parkway built?

It was built in 1967, making it 58 years old in 2025.

What condition is Montrose Blvd over Allen Parkway 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 Montrose Blvd over Allen Parkway carry?

About 6,000 vehicles per day (2011 count).

How long is Montrose Blvd over Allen Parkway?

The structure is 75 ft (22.9 m) long with a longest span of 38 ft (11.6 m) and a deck 94 ft wide.

Who owns Montrose Blvd over Allen Parkway?

It is owned by the City or Municipal Highway Agency.