US Bridges

US 34 Ml Wbnd over Barnes Inlet Canal

Poor

Larimer County, Colorado · In Loveland at Lake · Structure no. C-16-W

Built
1933
92 years old, rebuilt 1969
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
12,500
2020 count
Owner
State
State Highway Agency

About this bridge

US 34 Ml Wbnd over Barnes Inlet Canal is a steel stringer/multi-beam or girder carrying US 34 Ml Wbnd over Barnes Inlet Canal in Larimer County, Colorado. It was built in 1933 and reconstructed in 1969, so it is 92 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 4 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 12,500 vehicles a day, roughly 3% of them trucks, projected to reach 15,375 by 2040. The structure is 43 ft (13.2 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 34 Ml Wbnd
CrossesBarnes Inlet Canal
LocationIn Loveland at Lake
RouteU.S. Route 34A
Coordinates40.40519, -105.09135
Functional classUrban Other Principal Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating33.8 US tons
Inventory rating20.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length43 ft (13.2 m)
Longest span38 ft (11.7 m)
Deck width34 ft (10.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2020)
Projected traffic15,375 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$79,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 34 Ml Wbnd over Barnes Inlet Canal built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1969.

What condition is US 34 Ml Wbnd over Barnes Inlet Canal 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 November 2023.

How much traffic does US 34 Ml Wbnd over Barnes Inlet Canal carry?

About 12,500 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is US 34 Ml Wbnd over Barnes Inlet Canal?

The structure is 43 ft (13.2 m) long with a longest span of 38 ft (11.7 m) and a deck 34 ft wide.

Who owns US 34 Ml Wbnd over Barnes Inlet Canal?

It is owned by the State Highway Agency.