US Bridges

Cascade Drive over Greenleaf Creek

Good

Skamania County, Washington · 00.1 N Bpa Lines · Structure no. 087258000000000

Built
2004
21 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
100
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cascade Drive over Greenleaf Creek is a prestressed concrete slab carrying Cascade Drive over Greenleaf Creek in Skamania County, Washington. It was built in 2004, so it is 21 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 100 vehicles a day, roughly 16% of them trucks, projected to reach 100 by 2037. The structure is 47 ft (14.3 m) long and 38 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCascade Drive
CrossesGreenleaf Creek
Location00.1 N Bpa Lines
RouteCity Street 880
CountySkamania County
StateWashington
Coordinates45.655, -121.95806
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length47 ft (14.3 m)
Longest span46 ft (14 m)
Deck width38 ft (11.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic100 by 2037
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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 Cascade Drive over Greenleaf Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Cascade Drive over Greenleaf Creek 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 June 2023.

How much traffic does Cascade Drive over Greenleaf Creek carry?

About 100 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Cascade Drive over Greenleaf Creek?

The structure is 47 ft (14.3 m) long with a longest span of 46 ft (14 m) and a deck 38 ft wide.

Who owns Cascade Drive over Greenleaf Creek?

It is owned by the City or Municipal Highway Agency.