US Bridges

Letz CR RD over Letz Creek

Good

Lane County, Oregon · 045MI W of Lorane · Structure no. 39C457439200064

Built
1983
42 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
112
2020 count
Owner
County
County Highway Agency

About this bridge

Letz CR RD over Letz Creek is a prestressed concrete slab carrying Letz CR RD over Letz Creek in Lane County, Oregon. It was built in 1983, so it is 42 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 112 vehicles a day, projected to reach 112 by 2025. The structure is 69 ft (21 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLetz CR RD
CrossesLetz Creek
Location045MI W of Lorane
RouteCounty Highway C4392
StateOregon
Coordinates43.81437, -123.32355
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length69 ft (21 m)
Longest span68 ft (20.7 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112 (2020)
Projected traffic112 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Letz CR RD over Letz Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Letz CR RD over Letz 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 July 2024.

How much traffic does Letz CR RD over Letz Creek carry?

About 112 vehicles per day (2020 count).

How long is Letz CR RD over Letz Creek?

The structure is 69 ft (21 m) long with a longest span of 68 ft (20.7 m) and a deck 28 ft wide.

Who owns Letz CR RD over Letz Creek?

It is owned by the County Highway Agency.