US Bridges

SR 20 over Meadow Creek

Good

Skagit County, Washington · 2.8 E Island CO · Structure no. 0017358A0000000

Built
2008
17 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
144 ft
1 main span
Daily traffic
16,214
2023 count
Owner
State
State Highway Agency

About this bridge

SR 20 over Meadow Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 20 over Meadow Creek in Skagit County, Washington. It was built in 2008, so it is 17 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 16,214 vehicles a day, roughly 6% of them trucks, projected to reach 24,966 by 2039. The structure is 144 ft (43.9 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 20
CrossesMeadow Creek
Location2.8 E Island CO
RouteState Highway 20
Coordinates48.42786, -122.60917
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating48.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length144 ft (43.9 m)
Longest span139 ft (42.4 m)
Deck width59 ft (18.1 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,214 (2023)
Projected traffic24,966 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 20 over Meadow Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is SR 20 over Meadow 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 May 2024.

How much traffic does SR 20 over Meadow Creek carry?

About 16,214 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR 20 over Meadow Creek?

The structure is 144 ft (43.9 m) long with a longest span of 139 ft (42.4 m) and a deck 59 ft wide.

Who owns SR 20 over Meadow Creek?

It is owned by the State Highway Agency.