US Bridges

Commerce Park Loop over Drainageway

Good

Pima County, Arizona · .3 MI S St. Marys RD · Structure no. 10322

Built
1988
37 years old
Condition
Good
inspected August 2021
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
600
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Commerce Park Loop over Drainageway is a concrete continuous culvert carrying Commerce Park Loop over Drainageway in Pima County, Arizona. It was built in 1988, so it is 37 years old, younger than the Arizona average of 47.8 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 600 vehicles a day, roughly 10% of them trucks, projected to reach 610 by 2041. The structure is 21 ft (6.4 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCommerce Park Loop
CrossesDrainageway
Location.3 MI S St. Marys RD
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.2252, -110.9862
Functional classUrban Local

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 inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width52 ft (16 m)
Roadway width36 ft (11 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic600 (2021)
Projected traffic610 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Commerce Park Loop over Drainageway built?

It was built in 1988, making it 37 years old in 2025.

What condition is Commerce Park Loop over Drainageway 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 August 2021.

How much traffic does Commerce Park Loop over Drainageway carry?

About 600 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Commerce Park Loop over Drainageway?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns Commerce Park Loop over Drainageway?

It is owned by the City or Municipal Highway Agency.