US Bridges

Ivy Street over Big Thompson River

Good

Larimer County, Colorado · 95 Feet West of E. Rivers · Structure no. EP-IVY-THOM-A

Built
2023
2 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
90 ft
2 main spans
Daily traffic
1,507
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ivy Street over Big Thompson River is a concrete continuous box beam or girders - multiple carrying Ivy Street over Big Thompson River in Larimer County, Colorado. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,507 vehicles a day, roughly 11% of them trucks, projected to reach 1,884 by 2043. The structure is 90 ft (27.5 m) long and 43 ft wide.

CarriesIvy Street
CrossesBig Thompson River
Location95 Feet West of E. Rivers
RouteCounty Highway 0
Coordinates40.37443, -105.52244
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
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating30.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length90 ft (27.5 m)
Longest span41 ft (12.4 m)
Deck width43 ft (13 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,507 (2023)
Projected traffic1,884 by 2043
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 Ivy Street over Big Thompson River built?

It was built in 2023, making it 2 years old in 2025.

What condition is Ivy Street over Big Thompson 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 September 2024.

How much traffic does Ivy Street over Big Thompson River carry?

About 1,507 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Ivy Street over Big Thompson River?

The structure is 90 ft (27.5 m) long with a longest span of 41 ft (12.4 m) and a deck 43 ft wide.

Who owns Ivy Street over Big Thompson River?

It is owned by the City or Municipal Highway Agency.