US Bridges

W 170 Ave over Br of Little CR

Fair

Harrison County, Missouri · S 1 T 65 N R 29 W · Structure no. 32012

Built
2006
19 years old
Condition
Fair
inspected March 2024
Type
Channel Beam
Concrete
Length
33 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

W 170 Ave over Br of Little CR is a concrete channel beam carrying W 170 Ave over Br of Little CR in Harrison County, Missouri. It was built in 2006, so it is 19 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 23 by 2044. The structure is 33 ft (10.1 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesW 170 Ave
CrossesBr of Little CR
LocationS 1 T 65 N R 29 W
RouteCounty Highway 152
CountyHarrison County
StateMissouri
Coordinates40.47067, -94.101
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span32 ft (9.7 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic23 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W 170 Ave over Br of Little CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is W 170 Ave over Br of Little CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does W 170 Ave over Br of Little CR carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is W 170 Ave over Br of Little CR?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.7 m) and a deck 20 ft wide.

Who owns W 170 Ave over Br of Little CR?

It is owned by the County Highway Agency.