US Bridges

Witte Road over Park Trail

Good

King County, Washington · 0.5 MI E of SR-168 · Structure no. 086234000000000

Built
1996
29 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
34 ft
1 main span
Daily traffic
8,100
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Witte Road over Park Trail is a concrete culvert carrying Witte Road over Park Trail in King County, Washington. It was built in 1996, so it is 29 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 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 8,100 vehicles a day, roughly 5% of them trucks, projected to reach 11,100 by 2042. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWitte Road
CrossesPark Trail
Location0.5 MI E of SR-168
RouteCity Street 14670
Coordinates47.38206, -122.04806
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,100 (2022)
Projected traffic11,100 by 2042
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$759,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Witte Road over Park Trail built?

It was built in 1996, making it 29 years old in 2025.

What condition is Witte Road over Park Trail 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 October 2024.

How much traffic does Witte Road over Park Trail carry?

About 8,100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Witte Road over Park Trail?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m).

Who owns Witte Road over Park Trail?

It is owned by the City or Municipal Highway Agency.