US Bridges

Undi Road over Bear Creek

Good

Clallam County, Washington · 1.15M E SR101 · Structure no. 084745000000000

Built
1978
47 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
66
2017 count
Owner
County
County Highway Agency

About this bridge

Undi Road over Bear Creek is a prestressed concrete tee beam carrying Undi Road over Bear Creek in Clallam County, Washington. It was built in 1978, so it is 47 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 66 vehicles a day, roughly 15% of them trucks, projected to reach 75 by 2040. The structure is 88 ft (26.8 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUndi Road
CrossesBear Creek
Location1.15M E SR101
RouteCounty Highway 11670
Coordinates47.88936, -124.34642
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span85 ft (25.9 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66 (2017)
Projected traffic75 by 2040
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Undi Road over Bear Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Undi Road 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 January 2024.

How much traffic does Undi Road over Bear Creek carry?

About 66 vehicles per day (2017 count), of which roughly 15% are trucks.

How long is Undi Road over Bear Creek?

The structure is 88 ft (26.8 m) long with a longest span of 85 ft (25.9 m) and a deck 30 ft wide.

Who owns Undi Road over Bear Creek?

It is owned by the County Highway Agency.