US Bridges

Maple Grove RD (w) over Beaver Creek

Good

Clackamas County, Oregon · 03.3 MI E of Marion Count · Structure no. 06283 000 00333

Built
1970
55 years old
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
164
2020 count
Owner
County
County Highway Agency

About this bridge

Maple Grove RD (w) over Beaver Creek is a prestressed concrete slab carrying Maple Grove RD (w) over Beaver Creek in Clackamas County, Oregon. It was built in 1970, so it is 55 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.

It carries about 164 vehicles a day, roughly 33% of them trucks, projected to reach 164 by 2025. The structure is 28 ft (8.5 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMaple Grove RD (w)
CrossesBeaver Creek
Location03.3 MI E of Marion Count
RouteCounty Highway C0109
StateOregon
Coordinates45.04194, -122.61143
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.3 US tons
Inventory rating73.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic164 (2020)
Projected traffic164 by 2025
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Maple Grove RD (w) over Beaver Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Maple Grove RD (w) over Beaver 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 2024.

How much traffic does Maple Grove RD (w) over Beaver Creek carry?

About 164 vehicles per day (2020 count), of which roughly 33% are trucks.

How long is Maple Grove RD (w) over Beaver Creek?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Maple Grove RD (w) over Beaver Creek?

It is owned by the County Highway Agency.