US Bridges

Surro Ave over Cso Tank #42

Good

Spokane County, Washington · Surro Ave · Structure no. 088799000000000

Built
2009
16 years old
Condition
Good
inspected July 2024
Type
Culvert
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
32
2019 count
Owner
Local
Local Park, Forest, or Reservation Agency

About this bridge

Surro Ave over Cso Tank #42 is a prestressed concrete culvert carrying Surro Ave over Cso Tank #42 in Spokane County, Washington. It was built in 2009, so it is 16 years old, younger than the Washington average of 49.8 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 32 vehicles a day, roughly 50% of them trucks, projected to reach 500 by 2038. The structure is 89 ft (27.1 m) long.

CarriesSurro Ave
CrossesCso Tank #42
LocationSurro Ave
RouteCity Street 42
Coordinates47.67639, -117.33933
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
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

Structure typeCulvert
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length89 ft (27.1 m)
Longest span89 ft (27.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32 (2019)
Projected traffic500 by 2038
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Park, Forest, or Reservation Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Surro Ave over Cso Tank #42 built?

It was built in 2009, making it 16 years old in 2025.

What condition is Surro Ave over Cso Tank #42 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 July 2024.

How much traffic does Surro Ave over Cso Tank #42 carry?

About 32 vehicles per day (2019 count), of which roughly 50% are trucks.

How long is Surro Ave over Cso Tank #42?

The structure is 89 ft (27.1 m) long with a longest span of 89 ft (27.1 m).

Who owns Surro Ave over Cso Tank #42?

It is owned by the Local Park, Forest, or Reservation Agency and maintained by the Other Local Agency.