US Bridges

Bohmann Parkway over Fanno Creek

PoorPosted for load

Washington County, Oregon · 002 MI East of 92nd Ave · Structure no. 671203186200000

Built
1957
68 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
47 ft
3 main spans
Daily traffic
282
2020 count
Owner
County
County Highway Agency

About this bridge

Bohmann Parkway over Fanno Creek is a wood or timber stringer/multi-beam or girder carrying Bohmann Parkway over Fanno Creek in Washington County, Oregon. It was built in 1957, so it is 68 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 282 vehicles a day, roughly 5% of them trucks, projected to reach 311 by 2025. The structure is 47 ft (14.3 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesBohmann Parkway
CrossesFanno Creek
Location002 MI East of 92nd Ave
RouteCounty Highway C1862
StateOregon
Coordinates45.46828, -122.76734
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282 (2020)
Projected traffic311 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Bohmann Parkway over Fanno Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Bohmann Parkway over Fanno Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Bohmann Parkway over Fanno Creek carry?

About 282 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Bohmann Parkway over Fanno Creek?

The structure is 47 ft (14.3 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns Bohmann Parkway over Fanno Creek?

It is owned by the County Highway Agency.