US Bridges

Pierce Road over Ladd Creek

Good

Union County, Oregon · On Ladd Creek Road · Structure no. 21059 023 00000

Built
2009
16 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
246
2020 count
Owner
County
County Highway Agency

About this bridge

Pierce Road over Ladd Creek is a steel stringer/multi-beam or girder carrying Pierce Road over Ladd Creek in Union County, Oregon. It was built in 2009, so it is 16 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 246 vehicles a day, roughly 2% of them trucks, projected to reach 261 by 2025. The structure is 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesPierce Road
CrossesLadd Creek
LocationOn Ladd Creek Road
RouteCounty Highway 23
StateOregon
Coordinates45.26771, -118.0143
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating52.1 US tons
Inventory rating40.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2020)
Projected traffic261 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Pierce Road over Ladd Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Pierce Road over Ladd 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 2023.

How much traffic does Pierce Road over Ladd Creek carry?

About 246 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Pierce Road over Ladd Creek?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 30 ft wide.

Who owns Pierce Road over Ladd Creek?

It is owned by the County Highway Agency.