US Bridges

County Road 67 over South Platte River

Fair

Logan County, Colorado · 1.7 MI N of I-76 · Structure no. LOG67-50.1-175A

Built
1983
42 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
120 ft
3 main spans
Daily traffic
322
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 67 over South Platte River is a steel stringer/multi-beam or girder carrying County Road 67 over South Platte River in Logan County, Colorado. It was built in 1983, so it is 42 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 322 vehicles a day, roughly 60% of them trucks, projected to reach 396 by 2042. The structure is 120 ft (36.7 m) long and 29 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesCounty Road 67
CrossesSouth Platte River
Location1.7 MI N of I-76
RouteCounty Highway 0
CountyLogan County
StateColorado
Coordinates40.79392, -102.94683
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.1 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length120 ft (36.7 m)
Longest span39 ft (11.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic322 (2023)
Projected traffic396 by 2042
Trucks60%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road 67 over South Platte River built?

It was built in 1983, making it 42 years old in 2025.

What condition is County Road 67 over South Platte River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does County Road 67 over South Platte River carry?

About 322 vehicles per day (2023 count), of which roughly 60% are trucks.

How long is County Road 67 over South Platte River?

The structure is 120 ft (36.7 m) long with a longest span of 39 ft (11.9 m) and a deck 29 ft wide.

Who owns County Road 67 over South Platte River?

It is owned by the County Highway Agency.