US Bridges

C307 Drewsey Mkt over Lower Pine Creek

Good

Harney County, Oregon · 014 MI C310 Pine Creek RD · Structure no. 17377 C30725E17

Built
1995
30 years old
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
58
2020 count
Owner
County
County Highway Agency

About this bridge

C307 Drewsey Mkt over Lower Pine Creek is a prestressed concrete slab carrying C307 Drewsey Mkt over Lower Pine Creek in Harney County, Oregon. It was built in 1995, so it is 30 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 58 vehicles a day, roughly 10% of them trucks, projected to reach 68 by 2025. The structure is 72 ft (21.9 m) long and 28 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesC307 Drewsey Mkt
CrossesLower Pine Creek
Location014 MI C310 Pine Creek RD
RouteCounty Highway C0307
StateOregon
Coordinates43.85726, -118.56612
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
Deck8 Very GoodNo problems noted.
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
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 rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length72 ft (21.9 m)
Longest span71 ft (21.6 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2020)
Projected traffic68 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 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 C307 Drewsey Mkt over Lower Pine Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is C307 Drewsey Mkt over Lower Pine 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 C307 Drewsey Mkt over Lower Pine Creek carry?

About 58 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is C307 Drewsey Mkt over Lower Pine Creek?

The structure is 72 ft (21.9 m) long with a longest span of 71 ft (21.6 m) and a deck 28 ft wide.

Who owns C307 Drewsey Mkt over Lower Pine Creek?

It is owned by the County Highway Agency.