US Bridges

US77 HWY over Baldwin Creek

Fair

Riley County, Kansas · 5.77 MI N Njct US24 · Structure no. 999907700810141

Built
1962
63 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
1,878
2023 count
Owner
State
State Highway Agency

About this bridge

US77 HWY over Baldwin Creek is a concrete culvert carrying US77 HWY over Baldwin Creek in Riley County, Kansas. It was built in 1962, so it is 63 years old, older 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 6 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 1,878 vehicles a day, roughly 15% of them trucks, projected to reach 2,034 by 2044. The structure is 30 ft (9.1 m) long and 168 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesUS77 HWY
CrossesBaldwin Creek
Location5.77 MI N Njct US24
RouteU.S. Route 77
CountyRiley County
StateKansas
Coordinates39.38194, -96.75639
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width168 ft (51.2 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,878 (2023)
Projected traffic2,034 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US77 HWY over Baldwin Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is US77 HWY over Baldwin Creek 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 May 2023.

How much traffic does US77 HWY over Baldwin Creek carry?

About 1,878 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US77 HWY over Baldwin Creek?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 168 ft wide.

Who owns US77 HWY over Baldwin Creek?

It is owned by the State Highway Agency.