US Bridges

US 36 Ml over Fall River

Good

Larimer County, Colorado · 0.3 MI S. of SH34 in Este · Structure no. C-14-C

Built
2018
7 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
10,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 36 Ml over Fall River is a concrete culvert carrying US 36 Ml over Fall River in Larimer County, Colorado. It was built in 2018, so it is 7 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 10,000 vehicles a day, roughly 3% of them trucks, projected to reach 11,400 by 2040. The structure is 25 ft (7.7 m) long and 103 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 36 Ml
CrossesFall River
Location0.3 MI S. of SH34 in Este
RouteU.S. Route 36A
Coordinates40.37556, -105.52361
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length25 ft (7.7 m)
Longest span25 ft (7.7 m)
Deck width103 ft (31.4 m)
Roadway width48 ft (14.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2020)
Projected traffic11,400 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 36 Ml over Fall River built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 36 Ml over Fall River 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 July 2023.

How much traffic does US 36 Ml over Fall River carry?

About 10,000 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is US 36 Ml over Fall River?

The structure is 25 ft (7.7 m) long with a longest span of 25 ft (7.7 m) and a deck 103 ft wide.

Who owns US 36 Ml over Fall River?

It is owned by the State Highway Agency.