US Bridges

County RD 277 over Patterson Br

Fair

Livingston County, Missouri · S 9 T 58 N R 22 W · Structure no. 18275

Built
1970
55 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 277 over Patterson Br is a steel stringer/multi-beam or girder carrying County RD 277 over Patterson Br in Livingston County, Missouri. It was built in 1970, so it is 55 years old, older 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 5 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 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 26 ft (7.9 m) long and 12 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty RD 277
CrossesPatterson Br
LocationS 9 T 58 N R 22 W
RouteCounty Highway 180
CountyLivingston County
StateMissouri
Coordinates39.86209, -93.36347
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating55.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 County RD 277 over Patterson Br built?

It was built in 1970, making it 55 years old in 2025.

What condition is County RD 277 over Patterson Br 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 January 2025.

How much traffic does County RD 277 over Patterson Br carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 277 over Patterson Br?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 12 ft wide.

Who owns County RD 277 over Patterson Br?

It is owned by the County Highway Agency.