US Bridges

Market Lane over Grande Ronde River

Good

Union County, Oregon · 5.1 MI E of HWY 82 · Structure no. 01157A128 00505

Built
1984
41 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
128 ft
1 main span
Daily traffic
152
2020 count
Owner
County
County Highway Agency

About this bridge

Market Lane over Grande Ronde River is a prestressed concrete stringer/multi-beam or girder carrying Market Lane over Grande Ronde River in Union County, Oregon. It was built in 1984, so it is 41 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 152 vehicles a day, roughly 5% of them trucks, projected to reach 182 by 2025. The structure is 128 ft (39 m) long and 31 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

CarriesMarket Lane
CrossesGrande Ronde River
Location5.1 MI E of HWY 82
RouteCounty Highway 0
StateOregon
Coordinates45.38981, -117.88832
Functional classRural Major 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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating78.6 US tons
Inventory rating60.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length128 ft (39 m)
Longest span124 ft (37.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic152 (2020)
Projected traffic182 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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 Market Lane over Grande Ronde River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Market Lane over Grande Ronde 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 September 2023.

How much traffic does Market Lane over Grande Ronde River carry?

About 152 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Market Lane over Grande Ronde River?

The structure is 128 ft (39 m) long with a longest span of 124 ft (37.8 m) and a deck 31 ft wide.

Who owns Market Lane over Grande Ronde River?

It is owned by the County Highway Agency.