US Bridges

County RD 5A over Chrome/Beaver Slough/Rr

Fair

Coos County, Oregon · 0027 from Jc HWY 42 A426 · Structure no. 17974 005A00034

Built
2000
25 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
702 ft
5 main spans
Daily traffic
2,300
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 5A over Chrome/Beaver Slough/Rr is a prestressed concrete continuous stringer/multi-beam or girder carrying County RD 5A over Chrome/Beaver Slough/Rr in Coos County, Oregon. It was built in 2000, so it is 25 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,300 vehicles a day, roughly 10% of them trucks, projected to reach 2,600 by 2025. The structure is 702 ft (214 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty RD 5A
CrossesChrome/Beaver Slough/Rr
Location0027 from Jc HWY 42 A426
RouteCounty Highway A4260
CountyCoos County
StateOregon
Coordinates43.21615, -124.25098
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5 (+1 approach)
Design loadHS 25 or greater
Structure length702 ft (214 m)
Longest span125 ft (38.1 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2020)
Projected traffic2,600 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed9.9 mi (16 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 County RD 5A over Chrome/Beaver Slough/Rr built?

It was built in 2000, making it 25 years old in 2025.

What condition is County RD 5A over Chrome/Beaver Slough/Rr in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does County RD 5A over Chrome/Beaver Slough/Rr carry?

About 2,300 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County RD 5A over Chrome/Beaver Slough/Rr?

The structure is 702 ft (214 m) long with a longest span of 125 ft (38.1 m) and a deck 36 ft wide.

Who owns County RD 5A over Chrome/Beaver Slough/Rr?

It is owned by the County Highway Agency.