US Bridges

Maxwell Place over Irondale Gulch

Fair

Denver County, Colorado · 0.2 MI East of Chambers · Structure no. D-10-HC-390

Built
2001
24 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
1,198
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maxwell Place over Irondale Gulch is a concrete culvert carrying Maxwell Place over Irondale Gulch in Denver County, Colorado. It was built in 2001, so it is 24 years old, younger than the Colorado average of 42.2 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 1,198 vehicles a day, projected to reach 1,330 by 2041. The structure is 21 ft (6.3 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMaxwell Place
CrossesIrondale Gulch
Location0.2 MI East of Chambers
RouteCity Street 0
Coordinates39.79445, -104.80459
Functional classUrban 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width100 ft (30.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,198 (2021)
Projected traffic1,330 by 2041
Trucks0%
Lanes on structure2
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 Maxwell Place over Irondale Gulch built?

It was built in 2001, making it 24 years old in 2025.

What condition is Maxwell Place over Irondale Gulch 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 December 2024.

How much traffic does Maxwell Place over Irondale Gulch carry?

About 1,198 vehicles per day (2021 count).

How long is Maxwell Place over Irondale Gulch?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 100 ft wide.

Who owns Maxwell Place over Irondale Gulch?

It is owned by the City or Municipal Highway Agency.