US Bridges

County Road 27.8 over So. Platte Rvr. Overflow

Fair

Sedgwick County, Colorado · 0.7 Mi. No. of Co. Rd. 28 · Structure no. SED27.8-28.723A

Built
1986
39 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
327 ft
5 main spans
Daily traffic
482
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 27.8 over So. Platte Rvr. Overflow is a steel stringer/multi-beam or girder carrying County Road 27.8 over So. Platte Rvr. Overflow in Sedgwick County, Colorado. It was built in 1986, so it is 39 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 482 vehicles a day, roughly 29% of them trucks, projected to reach 574 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
CrossesSo. Platte Rvr. Overflow
Location0.7 Mi. No. of Co. Rd. 28
RouteCounty Highway 0
CountySedgwick County
StateColorado
Coordinates40.95044, -102.38756
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 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 rating46.6 US tons
Inventory rating27.9 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 traffic482 (2022)
Projected traffic574 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 So. Platte Rvr. Overflow built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road 27.8 over So. Platte Rvr. Overflow 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 So. Platte Rvr. Overflow carry?

About 482 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is County Road 27.8 over So. Platte Rvr. Overflow?

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 So. Platte Rvr. Overflow?

It is owned by the County Highway Agency.