US Bridges

643 AV-716 / 717 R over Little Muddy Creek

GoodPosted for load

Richardson County, Nebraska · 73/62 4E1.5S(643-716/717) · Structure no. C007402720

Built
1986
39 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
168 ft
3 main spans
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

643 AV-716 / 717 R over Little Muddy Creek is a steel continuous stringer/multi-beam or girder carrying 643 AV-716 / 717 R over Little Muddy Creek in Richardson County, Nebraska. It was built in 1986, so it is 39 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. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, projected to reach 78 by 2040. The structure is 168 ft (51.2 m) long and 31 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Carries643 AV-716 / 717 R
CrossesLittle Muddy Creek
Location73/62 4E1.5S(643-716/717)
RouteCounty Highway 3645
Coordinates40.2108, -95.7664
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating49.6 US tons
Inventory rating29.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span64 ft (19.5 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic78 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 643 AV-716 / 717 R over Little Muddy Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is 643 AV-716 / 717 R over Little 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 October 2023.

How much traffic does 643 AV-716 / 717 R over Little Muddy Creek carry?

About 60 vehicles per day (2023 count).

How long is 643 AV-716 / 717 R over Little Muddy Creek?

The structure is 168 ft (51.2 m) long with a longest span of 64 ft (19.5 m) and a deck 31 ft wide.

Who owns 643 AV-716 / 717 R over Little Muddy Creek?

It is owned by the County Highway Agency.