US Bridges

NW 80th Ave over Unnamed Creek

Good

Grundy County, Missouri · S 31 T 63 N R 25 W · Structure no. 12298

Built
1995
30 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

NW 80th Ave over Unnamed Creek is a steel stringer/multi-beam or girder carrying NW 80th Ave over Unnamed Creek in Grundy County, Missouri. It was built in 1995, so it is 30 years old, younger than the Missouri average of 45.1 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 20 vehicles a day, roughly 15% of them trucks, projected to reach 23 by 2044. The structure is 61 ft (18.6 m) long and 20 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNW 80th Ave
CrossesUnnamed Creek
LocationS 31 T 63 N R 25 W
RouteCounty Highway 5
CountyGrundy County
StateMissouri
Coordinates40.20574, -93.74653
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating95.2 US tons
Inventory rating41.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length61 ft (18.6 m)
Longest span59 ft (18 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic23 by 2044
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 NW 80th Ave over Unnamed Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is NW 80th Ave over Unnamed 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 2024.

How much traffic does NW 80th Ave over Unnamed Creek carry?

About 20 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is NW 80th Ave over Unnamed Creek?

The structure is 61 ft (18.6 m) long with a longest span of 59 ft (18 m) and a deck 20 ft wide.

Who owns NW 80th Ave over Unnamed Creek?

It is owned by the County Highway Agency.