US Bridges

Sherwood/Mulberry over Arthur Ditch

Good

Larimer County, Colorado · Sherwood at Mulberry · Structure no. FCSHWD-0.0-MULB

Built
2005
20 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
531
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sherwood/Mulberry over Arthur Ditch is a concrete culvert carrying Sherwood/Mulberry over Arthur Ditch in Larimer County, Colorado. It was built in 2005, so it is 20 years old, younger than the Colorado average of 42.2 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 531 vehicles a day, roughly 4% of them trucks, projected to reach 664 by 2042. The structure is 23 ft (7 m) long and 197 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSherwood/Mulberry
CrossesArthur Ditch
LocationSherwood at Mulberry
RouteCity Street 0
Coordinates40.58133, -105.08447
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width197 ft (59.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic531 (2023)
Projected traffic664 by 2042
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Sherwood/Mulberry over Arthur Ditch built?

It was built in 2005, making it 20 years old in 2025.

What condition is Sherwood/Mulberry over Arthur Ditch 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 April 2023.

How much traffic does Sherwood/Mulberry over Arthur Ditch carry?

About 531 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Sherwood/Mulberry over Arthur Ditch?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 197 ft wide.

Who owns Sherwood/Mulberry over Arthur Ditch?

It is owned by the City or Municipal Highway Agency.