US Bridges

County Road 27.8 over South Platte River

Fair

Sedgwick County, Colorado · 0.8 Mi. No. of Co. Rd. 28 · Structure no. SED27.8-30-24A

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
327 ft
5 main spans
Daily traffic
447
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 27.8 over South Platte River is a steel stringer/multi-beam or girder carrying County Road 27.8 over South Platte River in Sedgwick County, Colorado. It was built in 1985, so it is 40 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 447 vehicles a day, roughly 29% of them trucks, projected to reach 531 by 2042. The structure is 327 ft (99.8 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesCounty Road 27.8
CrossesSouth Platte River
Location0.8 Mi. No. of Co. Rd. 28
RouteCounty Highway 0
CountySedgwick County
StateColorado
Coordinates40.95381, -102.38764
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.2 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans5
Design loadHS 20
Structure length327 ft (99.8 m)
Longest span64 ft (19.6 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic447 (2022)
Projected traffic531 by 2042
Trucks29%
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 27.8 over South Platte River built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Road 27.8 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 November 2023.

How much traffic does County Road 27.8 over South Platte River carry?

About 447 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is County Road 27.8 over South Platte River?

The structure is 327 ft (99.8 m) long with a longest span of 64 ft (19.6 m) and a deck 32 ft wide.

Who owns County Road 27.8 over South Platte River?

It is owned by the County Highway Agency.