US Bridges

C-773 Non-Fa over Powder R (denny Crk Rd)

Poor

Baker County, Oregon · 0.1 MI S JCT Ore 220 · Structure no. 01C206773 00008

Built
1969
56 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
53
2020 count
Owner
County
County Highway Agency

About this bridge

C-773 Non-Fa over Powder R (denny Crk Rd) is a steel stringer/multi-beam or girder carrying C-773 Non-Fa over Powder R (denny Crk Rd) in Baker County, Oregon. It was built in 1969, so it is 56 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 53 vehicles a day, projected to reach 61 by 2025. The structure is 42 ft (12.8 m) long and 14 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesC-773 Non-Fa
CrossesPowder R (denny Crk Rd)
Location0.1 MI S JCT Ore 220
RouteCounty Highway C0773
StateOregon
Coordinates44.65122, -117.90342
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.2 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2020)
Projected traffic61 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$279,000
NavigationNo navigation control on waterway

Frequently asked questions

When was C-773 Non-Fa over Powder R (denny Crk Rd) built?

It was built in 1969, making it 56 years old in 2025.

What condition is C-773 Non-Fa over Powder R (denny Crk Rd) in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does C-773 Non-Fa over Powder R (denny Crk Rd) carry?

About 53 vehicles per day (2020 count).

How long is C-773 Non-Fa over Powder R (denny Crk Rd)?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 14 ft wide.

Who owns C-773 Non-Fa over Powder R (denny Crk Rd)?

It is owned by the County Highway Agency.