US Bridges

Fourth St. over Arkansas River

Good

Fremont County, Colorado · 0.15 MI S of US 50 · Structure no. CC 2A-FOURTH ST

Built
2001
24 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
115 ft
1 main span
Daily traffic
2,706
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fourth St. over Arkansas River is a prestressed concrete stringer/multi-beam or girder carrying Fourth St. over Arkansas River in Fremont 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 good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,706 vehicles a day, roughly 5% of them trucks, projected to reach 3,030 by 2042. The structure is 115 ft (35.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFourth St.
CrossesArkansas River
Location0.15 MI S of US 50
RouteCity Street 0
Coordinates38.43657, -105.24069
Functional classUrban Collector

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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating69.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span109 ft (33.2 m)
Deck width42 ft (12.9 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,706 (2022)
Projected traffic3,030 by 2042
Trucks5%
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 Fourth St. over Arkansas River built?

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

What condition is Fourth St. over Arkansas 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 January 2025.

How much traffic does Fourth St. over Arkansas River carry?

About 2,706 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Fourth St. over Arkansas River?

The structure is 115 ft (35.1 m) long with a longest span of 109 ft (33.2 m) and a deck 42 ft wide.

Who owns Fourth St. over Arkansas River?

It is owned by the City or Municipal Highway Agency.