US Bridges

Holzwarth Access R over Colorado River

Poor

Grand County, Colorado · West Side of Park Approx · Structure no. 1520029S0000000

Built
1982
43 years old
Condition
Poor
inspected October 2024
Type
Culvert
Steel
Length
39 ft
6 main spans
Daily traffic
2
2019 count
Owner
Federal
National Park Service

About this bridge

Holzwarth Access R over Colorado River is a steel culvert carrying Holzwarth Access R over Colorado River in Grand County, Colorado. It was built in 1982, so it is 43 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2 vehicles a day, projected to reach 2 by 2039. The structure is 39 ft (11.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesHolzwarth Access R
CrossesColorado River
LocationWest Side of Park Approx
RouteFederal Lands Road 0
CountyGrand County
StateColorado
Coordinates40.3716, -105.85898
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating29 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadUnknown
Structure length39 ft (11.8 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width8 ft (2.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2 (2019)
Projected traffic2 by 2039
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$563,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Holzwarth Access R over Colorado River built?

It was built in 1982, making it 43 years old in 2025.

What condition is Holzwarth Access R over Colorado River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Holzwarth Access R over Colorado River carry?

About 2 vehicles per day (2019 count).

How long is Holzwarth Access R over Colorado River?

The structure is 39 ft (11.8 m) long with a longest span of 6 ft (1.8 m).

Who owns Holzwarth Access R over Colorado River?

It is owned by the National Park Service.