US Bridges

Saybrook Drive NE over Bear Creek

Good

King County, Washington · 0.1 MI S JCT NE W-Duvall · Structure no. 089336000000000

Built
1992
33 years old
Condition
Good
inspected September 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
3,000
2022 count
Owner
County
County Highway Agency

About this bridge

Saybrook Drive NE over Bear Creek is a steel culvert carrying Saybrook Drive NE over Bear Creek in King County, Washington. It was built in 1992, so it is 33 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 3,000 vehicles a day, roughly 1% of them trucks, projected to reach 3,000 by 2042. The structure is 22 ft (6.7 m) long and 70 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSaybrook Drive NE
CrossesBear Creek
Location0.1 MI S JCT NE W-Duvall
RouteCounty Highway 96818
Coordinates47.74969, -122.04375
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating106.8 US tons
Inventory rating106.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width70 ft (21.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2022)
Projected traffic3,000 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$439,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Saybrook Drive NE over Bear Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Saybrook Drive NE over Bear 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 September 2024.

How much traffic does Saybrook Drive NE over Bear Creek carry?

About 3,000 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Saybrook Drive NE over Bear Creek?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 70 ft wide.

Who owns Saybrook Drive NE over Bear Creek?

It is owned by the County Highway Agency.