US Bridges

Forest Lane over Herman Creek

Fair

Hood River County, Oregon · 01.5 MI E of Old HWY 30 · Structure no. 00159A604 00081

Built
1979
46 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
86 ft
1 main span
Daily traffic
1,775
2020 count
Owner
County
County Highway Agency

About this bridge

Forest Lane over Herman Creek is a prestressed concrete stringer/multi-beam or girder carrying Forest Lane over Herman Creek in Hood River County, Oregon. It was built in 1979, so it is 46 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 1,775 vehicles a day, roughly 10% of them trucks, projected to reach 1,980 by 2025. The structure is 86 ft (26.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesForest Lane
CrossesHerman Creek
Location01.5 MI E of Old HWY 30
RouteCounty Highway B0436
CountyHood River County
StateOregon
Coordinates45.67896, -121.86069
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span85 ft (25.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,775 (2020)
Projected traffic1,980 by 2025
Trucks10%
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 Forest Lane over Herman Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Forest Lane over Herman 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 September 2024.

How much traffic does Forest Lane over Herman Creek carry?

About 1,775 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Forest Lane over Herman Creek?

The structure is 86 ft (26.2 m) long with a longest span of 85 ft (25.9 m) and a deck 32 ft wide.

Who owns Forest Lane over Herman Creek?

It is owned by the County Highway Agency.