US Bridges

US 101 over Simdars RD

Good

Clallam County, Washington · 19.8 E JCT SR 117 · Structure no. 0015345E0000000

Built
1999
26 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
1 main span
Daily traffic
16,083
2023 count
Owner
State
State Highway Agency

About this bridge

US 101 over Simdars RD is a prestressed concrete stringer/multi-beam or girder carrying US 101 over Simdars RD in Clallam County, Washington. It was built in 1999, so it is 26 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 16,083 vehicles a day, roughly 9% of them trucks, projected to reach 19,308 by 2039. The structure is 140 ft (42.7 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 101
CrossesSimdars RD
Location19.8 E JCT SR 117
RouteU.S. Route 101
Coordinates48.06836, -123.07014
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length140 ft (42.7 m)
Longest span135 ft (41.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,083 (2023)
Projected traffic19,308 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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$2.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 101 over Simdars RD built?

It was built in 1999, making it 26 years old in 2025.

What condition is US 101 over Simdars RD 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 March 2023.

How much traffic does US 101 over Simdars RD carry?

About 16,083 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US 101 over Simdars RD?

The structure is 140 ft (42.7 m) long with a longest span of 135 ft (41.1 m) and a deck 43 ft wide.

Who owns US 101 over Simdars RD?

It is owned by the State Highway Agency.