US Bridges

Goodspeed Road over Hall Slough

Poor

Tillamook County, Oregon · 1.5 MI N.W.Of Tillamook · Structure no. 57C22 708 00090

Built
1960
65 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
98 ft
5 main spans
Daily traffic
67
2020 count
Owner
County
County Highway Agency

About this bridge

Goodspeed Road over Hall Slough is a wood or timber stringer/multi-beam or girder carrying Goodspeed Road over Hall Slough in Tillamook County, Oregon. It was built in 1960, so it is 65 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: open, would be posted or closed except for temporary shoring.

It carries about 67 vehicles a day, roughly 15% of them trucks, projected to reach 78 by 2025. The structure is 98 ft (29.9 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGoodspeed Road
CrossesHall Slough
Location1.5 MI N.W.Of Tillamook
RouteCounty Highway C0708
StateOregon
Coordinates45.4707, -123.8622
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadH 20
Structure length98 ft (29.9 m)
Longest span18 ft (5.5 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67 (2020)
Projected traffic78 by 2025
Trucks15%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$652,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Goodspeed Road over Hall Slough built?

It was built in 1960, making it 65 years old in 2025.

What condition is Goodspeed Road over Hall Slough 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 June 2024.

How much traffic does Goodspeed Road over Hall Slough carry?

About 67 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Goodspeed Road over Hall Slough?

The structure is 98 ft (29.9 m) long with a longest span of 18 ft (5.5 m) and a deck 20 ft wide.

Who owns Goodspeed Road over Hall Slough?

It is owned by the County Highway Agency.