US Bridges

Watts Road over S Fk Scappoose Creek

Poor

Columbia County, Oregon · 003 MI W Scappoose RD · Structure no. 13344A115900446

Built
1962
63 years old
Condition
Poor
inspected May 2023
Type
Slab
Prestressed Concrete
Length
73 ft
3 main spans
Daily traffic
1,667
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Watts Road over S Fk Scappoose Creek is a prestressed concrete slab carrying Watts Road over S Fk Scappoose Creek in Columbia County, Oregon. It was built in 1962, so it is 63 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.

It carries about 1,667 vehicles a day, roughly 10% of them trucks, projected to reach 1,839 by 2025. The structure is 73 ft (22.3 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWatts Road
CrossesS Fk Scappoose Creek
Location003 MI W Scappoose RD
RouteCounty Highway A0741
StateOregon
Coordinates45.75129, -122.88463
Functional classRural Major Collector

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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span24 ft (7.3 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,667 (2020)
Projected traffic1,839 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Watts Road over S Fk Scappoose Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Watts Road over S Fk Scappoose 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 May 2023.

How much traffic does Watts Road over S Fk Scappoose Creek carry?

About 1,667 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Watts Road over S Fk Scappoose Creek?

The structure is 73 ft (22.3 m) long with a longest span of 24 ft (7.3 m) and a deck 31 ft wide.

Who owns Watts Road over S Fk Scappoose Creek?

It is owned by the City or Municipal Highway Agency.