US Bridges

Mckinley Springs over Glade Creek

Fair

Benton County, Washington · 01.18 S Horrigan RD · Structure no. 080836000000000

Built
1974
51 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
301
2023 count
Owner
County
County Highway Agency

About this bridge

Mckinley Springs over Glade Creek is a prestressed concrete stringer/multi-beam or girder carrying Mckinley Springs over Glade Creek in Benton County, Washington. It was built in 1974, so it is 51 years old, older than the Washington average of 49.8 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 301 vehicles a day, roughly 5% of them trucks, projected to reach 275 by 2038. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesMckinley Springs
CrossesGlade Creek
Location01.18 S Horrigan RD
RouteCounty Highway 13350
Coordinates46.02237, -119.8488
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic301 (2023)
Projected traffic275 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$570,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mckinley Springs over Glade Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Mckinley Springs over Glade Creek 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 December 2023.

How much traffic does Mckinley Springs over Glade Creek carry?

About 301 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mckinley Springs over Glade Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns Mckinley Springs over Glade Creek?

It is owned by the County Highway Agency.