US Bridges

Sutton Lake Road over Mercer Creek

Good

Lane County, Oregon · 003 MI E HWY101-SUTTON Lk · Structure no. 39C561523000042

Built
1980
45 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
157 ft
5 main spans
Daily traffic
1,512
2020 count
Owner
County
County Highway Agency

About this bridge

Sutton Lake Road over Mercer Creek is a prestressed concrete slab carrying Sutton Lake Road over Mercer Creek in Lane County, Oregon. It was built in 1980, so it is 45 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 1,512 vehicles a day, roughly 10% of them trucks, projected to reach 1,772 by 2025. The structure is 157 ft (47.9 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSutton Lake Road
CrossesMercer Creek
Location003 MI E HWY101-SUTTON Lk
RouteCounty Highway C5230
StateOregon
Coordinates44.05467, -124.09091
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans5
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,512 (2020)
Projected traffic1,772 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

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 Sutton Lake Road over Mercer Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Sutton Lake Road over Mercer Creek 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 September 2023.

How much traffic does Sutton Lake Road over Mercer Creek carry?

About 1,512 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Sutton Lake Road over Mercer Creek?

The structure is 157 ft (47.9 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns Sutton Lake Road over Mercer Creek?

It is owned by the County Highway Agency.