US Bridges

Minor 478-811.3 over Gypsum Creek

Good

Saline County, Kansas · 0.5N 0.3E of Gypsum · Structure no. 000850811304780

Built
1987
38 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete Continuous
Length
228 ft
5 main spans
Daily traffic
127
2017 count
Owner
County
County Highway Agency

About this bridge

Minor 478-811.3 over Gypsum Creek is a concrete continuous slab carrying Minor 478-811.3 over Gypsum Creek in Saline County, Kansas. It was built in 1987, so it is 38 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 127 vehicles a day, roughly 6% of them trucks, projected to reach 155 by 2043. The structure is 228 ft (69.5 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMinor 478-811.3
CrossesGypsum Creek
Location0.5N 0.3E of Gypsum
RouteCounty Highway 8536
StateKansas
Coordinates38.71075, -97.42142
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating82.3 US tons
Inventory rating49.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length228 ft (69.5 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic127 (2017)
Projected traffic155 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Minor 478-811.3 over Gypsum Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Minor 478-811.3 over Gypsum Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Minor 478-811.3 over Gypsum Creek carry?

About 127 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is Minor 478-811.3 over Gypsum Creek?

The structure is 228 ft (69.5 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns Minor 478-811.3 over Gypsum Creek?

It is owned by the County Highway Agency.