US Bridges

Monks Hollow RD over Diamond Fork River

FairPosted for load

Utah County, Utah · Spanish Fork Canyon · Structure no. 041803000001020

Built
1954
71 years old
Condition
Fair
inspected November 2022
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
34 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Monks Hollow RD over Diamond Fork River is a wood or timber stringer/multi-beam or girder carrying Monks Hollow RD over Diamond Fork River in Utah County, Utah. It was built in 1954, so it is 71 years old, older than the Utah average of 40.1 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 34 ft (10.4 m) long and 14 ft wide.

Location

Open in Google Maps
CarriesMonks Hollow RD
CrossesDiamond Fork River
LocationSpanish Fork Canyon
RouteFederal Lands Road 70072
CountyUtah County
StateUtah
Coordinates40.07501, -111.39224
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.5 US tons
Inventory rating14.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Monks Hollow RD over Diamond Fork River built?

It was built in 1954, making it 71 years old in 2025.

What condition is Monks Hollow RD over Diamond Fork River 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 November 2022.

How much traffic does Monks Hollow RD over Diamond Fork River carry?

About 50 vehicles per day (latest count).

How long is Monks Hollow RD over Diamond Fork River?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 14 ft wide.

Who owns Monks Hollow RD over Diamond Fork River?

It is owned by the U.S. Forest Service.