US Bridges

Dryden Road over Deer Creek

Good

Josephine County, Oregon · T38S R7W S9 · Structure no. 16932 000517010

Built
1994
31 years old
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
129 ft
1 main span
Daily traffic
1,091
2020 count
Owner
County
County Highway Agency

About this bridge

Dryden Road over Deer Creek is a prestressed concrete slab carrying Dryden Road over Deer Creek in Josephine County, Oregon. It was built in 1994, so it is 31 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 1,091 vehicles a day, roughly 10% of them trucks, projected to reach 1,281 by 2025. The structure is 129 ft (39.3 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesDryden Road
CrossesDeer Creek
LocationT38S R7W S9
RouteCounty Highway 5170
StateOregon
Coordinates42.27213, -123.53709
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length129 ft (39.3 m)
Longest span56 ft (17.1 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,091 (2020)
Projected traffic1,281 by 2025
Trucks10%
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 Dryden Road over Deer Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Dryden Road over Deer 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 October 2024.

How much traffic does Dryden Road over Deer Creek carry?

About 1,091 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Dryden Road over Deer Creek?

The structure is 129 ft (39.3 m) long with a longest span of 56 ft (17.1 m) and a deck 32 ft wide.

Who owns Dryden Road over Deer Creek?

It is owned by the County Highway Agency.