US Bridges

N88 over Pumpkin Creek

Good

Morrill County, Nebraska · 6S Bridgeport · Structure no. S088 05357

Built
1990
35 years old
Condition
Good
inspected May 2022
Type
Tee Beam
Prestressed Concrete
Length
82 ft
2 main spans
Daily traffic
610
2018 count
Owner
State
State Highway Agency

About this bridge

N88 over Pumpkin Creek is a prestressed concrete tee beam carrying N88 over Pumpkin Creek in Morrill County, Nebraska. It was built in 1990, so it is 35 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 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 610 vehicles a day, roughly 10% of them trucks, projected to reach 763 by 2038. The structure is 82 ft (25 m) long and 38 ft wide. If it were closed, the detour would be 99.4 mi (160 km).

CarriesN88
CrossesPumpkin Creek
Location6S Bridgeport
RouteState Highway 88
Coordinates41.5872, -103.0999
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
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.8 US tons
Inventory rating62.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length82 ft (25 m)
Longest span40 ft (12.2 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2018)
Projected traffic763 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed99.4 mi (160 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N88 over Pumpkin Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is N88 over Pumpkin 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 May 2022.

How much traffic does N88 over Pumpkin Creek carry?

About 610 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N88 over Pumpkin Creek?

The structure is 82 ft (25 m) long with a longest span of 40 ft (12.2 m) and a deck 38 ft wide.

Who owns N88 over Pumpkin Creek?

It is owned by the State Highway Agency.