US Bridges

S Railroad Ave over Flood Plain

Good

Larimer County, Colorado · 0.6 MI N of CR 18 · Structure no. LOV720SRAILRDAV

Built
2019
6 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
2,443
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Railroad Ave over Flood Plain is a prestressed concrete stringer/multi-beam or girder carrying S Railroad Ave over Flood Plain in Larimer County, Colorado. It was built in 2019, so it is 6 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 2,443 vehicles a day, roughly 7% of them trucks, projected to reach 3,054 by 2042. The structure is 103 ft (31.4 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS Railroad Ave
CrossesFlood Plain
Location0.6 MI N of CR 18
RouteCity Street 0
CountyLarimer County
StateColorado
Coordinates40.38558, -105.08224
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length103 ft (31.4 m)
Longest span97 ft (29.6 m)
Deck width50 ft (15.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,443 (2023)
Projected traffic3,054 by 2042
Trucks7%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Railroad Ave over Flood Plain built?

It was built in 2019, making it 6 years old in 2025.

What condition is S Railroad Ave over Flood Plain 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 May 2023.

How much traffic does S Railroad Ave over Flood Plain carry?

About 2,443 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S Railroad Ave over Flood Plain?

The structure is 103 ft (31.4 m) long with a longest span of 97 ft (29.6 m) and a deck 50 ft wide.

Who owns S Railroad Ave over Flood Plain?

It is owned by the City or Municipal Highway Agency.