US Bridges

Ladd Hill RD over Corral Creek

Fair

Clackamas County, Oregon · MI N of · Structure no. 06093 015 00300

Built
1958
67 years old
Condition
Fair
inspected May 2023
Type
Channel Beam
Concrete
Length
23 ft
1 main span
Daily traffic
453
2020 count
Owner
County
County Highway Agency

About this bridge

Ladd Hill RD over Corral Creek is a concrete channel beam carrying Ladd Hill RD over Corral Creek in Clackamas County, Oregon. It was built in 1958, so it is 67 years old, older 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 5 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 453 vehicles a day, roughly 12% of them trucks, projected to reach 458 by 2025. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLadd Hill RD
CrossesCorral Creek
LocationMI N of
RouteCounty Highway 0A620
CountyClackamas County
StateOregon
Coordinates45.30129, -122.84672
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic453 (2020)
Projected traffic458 by 2025
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ladd Hill RD over Corral Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Ladd Hill RD over Corral Creek 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 May 2023.

How much traffic does Ladd Hill RD over Corral Creek carry?

About 453 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is Ladd Hill RD over Corral Creek?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 28 ft wide.

Who owns Ladd Hill RD over Corral Creek?

It is owned by the County Highway Agency.