US Bridges

HWY 029 over Dawson Creek

Fair

Washington County, Oregon · 1.5 MI E Hillsboro Cc · Structure no. 01754A029 01055

Built
1961
64 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
5 main spans
Daily traffic
22,757
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 029 over Dawson Creek is a prestressed concrete stringer/multi-beam or girder carrying HWY 029 over Dawson Creek in Washington County, Oregon. It was built in 1961, so it is 64 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 22,757 vehicles a day, roughly 3% of them trucks, projected to reach 29,600 by 2042. The structure is 210 ft (64 m) long and 79 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesHWY 029
CrossesDawson Creek
Location1.5 MI E Hillsboro Cc
RouteState Highway 8
CountyWashington County
StateOregon
Coordinates45.50218, -122.94765
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to 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 rating64.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length210 ft (64 m)
Longest span42 ft (12.8 m)
Deck width79 ft (24 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,757 (2022)
Projected traffic29,600 by 2042
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 HWY 029 over Dawson Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is HWY 029 over Dawson Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does HWY 029 over Dawson Creek carry?

About 22,757 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is HWY 029 over Dawson Creek?

The structure is 210 ft (64 m) long with a longest span of 42 ft (12.8 m) and a deck 79 ft wide.

Who owns HWY 029 over Dawson Creek?

It is owned by the State Highway Agency.