US Bridges

8th ST over Dry Branch

FairPosted for load

Riley County, Kansas · 8th and S Park · Structure no. 521100810000001

Built
1973
52 years old, rebuilt 1993
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
51 ft
3 main spans
Daily traffic
20
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

8th ST over Dry Branch is a steel continuous stringer/multi-beam or girder carrying 8th ST over Dry Branch in Riley County, Kansas. It was built in 1973 and reconstructed in 1993, so it is 52 years old, younger than the Kansas average of 52.8 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2042. The structure is 51 ft (15.4 m) long and 20 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
Carries8th ST
CrossesDry Branch
Location8th and S Park
RouteCity Street 63431
CountyRiley County
StateKansas
Coordinates39.10951, -96.7076
Functional classUrban 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.
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 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating15 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length51 ft (15.4 m)
Longest span22 ft (6.8 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2018)
Projected traffic20 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 8th ST over Dry Branch built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1993.

What condition is 8th ST over Dry Branch 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 2024.

How much traffic does 8th ST over Dry Branch carry?

About 20 vehicles per day (2018 count).

How long is 8th ST over Dry Branch?

The structure is 51 ft (15.4 m) long with a longest span of 22 ft (6.8 m) and a deck 20 ft wide.

Who owns 8th ST over Dry Branch?

It is owned by the City or Municipal Highway Agency.