US Bridges

US 36 Ml over Draw

Poor

Arapahoe County, Colorado · 2.4 MI E of JCT I 70 · Structure no. F-19-F

Built
1931
94 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
109 ft
4 main spans
Daily traffic
3,400
2020 count
Owner
State
State Highway Agency

About this bridge

US 36 Ml over Draw is a wood or timber stringer/multi-beam or girder carrying US 36 Ml over Draw in Arapahoe County, Colorado. It was built in 1931, so it is 94 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 3,400 vehicles a day, roughly 6% of them trucks, projected to reach 3,910 by 2040. The structure is 109 ft (33.2 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 36 Ml
CrossesDraw
Location2.4 MI E of JCT I 70
RouteU.S. Route 36D
Coordinates39.71493, -104.24282
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating38.8 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length109 ft (33.2 m)
Longest span27 ft (8.2 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2020)
Projected traffic3,910 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.1 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 36 Ml over Draw built?

It was built in 1931, making it 94 years old in 2025.

What condition is US 36 Ml over Draw 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 September 2023.

How much traffic does US 36 Ml over Draw carry?

About 3,400 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is US 36 Ml over Draw?

The structure is 109 ft (33.2 m) long with a longest span of 27 ft (8.2 m) and a deck 31 ft wide.

Who owns US 36 Ml over Draw?

It is owned by the State Highway Agency.