US Bridges

Gumwood Lane over Irrigation Canal

GoodPosted for load

Jefferson County, Oregon · 2.7 MI E of HWY 26 · Structure no. 31C26 673000265

Built
1948
77 years old, rebuilt 1994
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
29 ft
1 main span
Daily traffic
59
2020 count
Owner
County
County Highway Agency

About this bridge

Gumwood Lane over Irrigation Canal is a wood or timber stringer/multi-beam or girder carrying Gumwood Lane over Irrigation Canal in Jefferson County, Oregon. It was built in 1948 and reconstructed in 1994, so it is 77 years old, older than the Oregon average of 49.9 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. Its operating status is: posted for load restriction.

It carries about 59 vehicles a day, projected to reach 67 by 2025. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesGumwood Lane
CrossesIrrigation Canal
Location2.7 MI E of HWY 26
RouteCounty Highway 0
CountyJefferson County
StateOregon
Coordinates44.72266, -121.12539
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 inspectionNovember 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2020)
Projected traffic67 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Gumwood Lane over Irrigation Canal built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1994.

What condition is Gumwood Lane over Irrigation Canal 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 November 2024.

How much traffic does Gumwood Lane over Irrigation Canal carry?

About 59 vehicles per day (2020 count).

How long is Gumwood Lane over Irrigation Canal?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 24 ft wide.

Who owns Gumwood Lane over Irrigation Canal?

It is owned by the County Highway Agency.