US Bridges

County Road 28 over Lower Platte Beaver Cnl

Fair

Morgan County, Colorado · Just North CO RD U.5 · Structure no. MG28-0.0-U.5

Built
1940
85 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
29 ft
1 main span
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 28 over Lower Platte Beaver Cnl is a wood or timber stringer/multi-beam or girder carrying County Road 28 over Lower Platte Beaver Cnl in Morgan County, Colorado. It was built in 1940, so it is 85 years old, older 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 40 vehicles a day, roughly 24% of them trucks, projected to reach 51 by 2043. The structure is 29 ft (8.9 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty Road 28
CrossesLower Platte Beaver Cnl
LocationJust North CO RD U.5
RouteCounty Highway 0
CountyMorgan County
StateColorado
Coordinates40.29861, -103.62183
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.4 US tons
Inventory rating23.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.9 m)
Longest span26 ft (7.8 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic51 by 2043
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$727,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 28 over Lower Platte Beaver Cnl built?

It was built in 1940, making it 85 years old in 2025.

What condition is County Road 28 over Lower Platte Beaver Cnl 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 November 2024.

How much traffic does County Road 28 over Lower Platte Beaver Cnl carry?

About 40 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is County Road 28 over Lower Platte Beaver Cnl?

The structure is 29 ft (8.9 m) long with a longest span of 26 ft (7.8 m) and a deck 20 ft wide.

Who owns County Road 28 over Lower Platte Beaver Cnl?

It is owned by the County Highway Agency.