US Bridges

Franklin Road over Long Tom River

Good

Lane County, Oregon · 0093 MI E Franklin Store · Structure no. 39C398383600093

Built
1990
35 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
105 ft
2 main spans
Daily traffic
529
2020 count
Owner
County
County Highway Agency

About this bridge

Franklin Road over Long Tom River is a prestressed concrete slab carrying Franklin Road over Long Tom River in Lane County, Oregon. It was built in 1990, so it is 35 years old, younger 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.

It carries about 529 vehicles a day, roughly 10% of them trucks, projected to reach 609 by 2025. The structure is 105 ft (32 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesFranklin Road
CrossesLong Tom River
Location0093 MI E Franklin Store
RouteCounty Highway C3836
StateOregon
Coordinates44.15443, -123.29168
Functional classRural Minor Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 25 or greater
Structure length105 ft (32 m)
Longest span57 ft (17.4 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic529 (2020)
Projected traffic609 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Franklin Road over Long Tom River built?

It was built in 1990, making it 35 years old in 2025.

What condition is Franklin Road over Long Tom River 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 July 2024.

How much traffic does Franklin Road over Long Tom River carry?

About 529 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Franklin Road over Long Tom River?

The structure is 105 ft (32 m) long with a longest span of 57 ft (17.4 m) and a deck 32 ft wide.

Who owns Franklin Road over Long Tom River?

It is owned by the County Highway Agency.