US Bridges

N18 over E Br Muddy Creek

Good

Gosper County, Nebraska · 1E Gosper/Frontier Cl · Structure no. S018 03499

Built
2003
22 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
105
2018 count
Owner
State
State Highway Agency

About this bridge

N18 over E Br Muddy Creek is a prestressed concrete stringer/multi-beam or girder carrying N18 over E Br Muddy Creek in Gosper County, Nebraska. It was built in 2003, so it is 22 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 105 vehicles a day, roughly 19% of them trucks, projected to reach 137 by 2038. The structure is 84 ft (25.6 m) long and 38 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN18
CrossesE Br Muddy Creek
Location1E Gosper/Frontier Cl
RouteState Highway 18
Coordinates40.4963, -99.9687
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length84 ft (25.6 m)
Longest span82 ft (25 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105 (2018)
Projected traffic137 by 2038
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N18 over E Br Muddy Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is N18 over E Br Muddy 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 April 2023.

How much traffic does N18 over E Br Muddy Creek carry?

About 105 vehicles per day (2018 count), of which roughly 19% are trucks.

How long is N18 over E Br Muddy Creek?

The structure is 84 ft (25.6 m) long with a longest span of 82 ft (25 m) and a deck 38 ft wide.

Who owns N18 over E Br Muddy Creek?

It is owned by the State Highway Agency.