US Bridges

Highland RD over Larson Creek

Good

Jackson County, Oregon · 0.24 MI S Barrnett RD · Structure no. 19111 000 00000

Built
2007
18 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
3,215
2010 count
Owner
State
State Highway Agency

About this bridge

Highland RD over Larson Creek is a prestressed concrete stringer/multi-beam or girder carrying Highland RD over Larson Creek in Jackson County, Oregon. It was built in 2007, so it is 18 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 3,215 vehicles a day, roughly 5% of them trucks, projected to reach 4,917 by 2030. The structure is 102 ft (31.1 m) long and 107 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHighland RD
CrossesLarson Creek
Location0.24 MI S Barrnett RD
RouteCity Street 0
StateOregon
Coordinates42.3145, -122.8493
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating54.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length102 ft (31.1 m)
Longest span102 ft (31.1 m)
Deck width107 ft (32.6 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,215 (2010)
Projected traffic4,917 by 2030
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Highland RD over Larson Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Highland RD over Larson 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 June 2024.

How much traffic does Highland RD over Larson Creek carry?

About 3,215 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Highland RD over Larson Creek?

The structure is 102 ft (31.1 m) long with a longest span of 102 ft (31.1 m) and a deck 107 ft wide.

Who owns Highland RD over Larson Creek?

It is owned by the State Highway Agency.