US Bridges

Rt C E over Long Br

PoorPosted for load

Linn County, Missouri · S 2 T 59 N R 20 W · Structure no. 8566

Built
1930
95 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
173 ft
6 main spans
Daily traffic
289
2024 count
Owner
State
State Highway Agency

About this bridge

Rt C E over Long Br is a steel stringer/multi-beam or girder carrying Rt C E over Long Br in Linn County, Missouri. It was built in 1930, so it is 95 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 289 vehicles a day, roughly 11% of them trucks, projected to reach 361 by 2044. The structure is 173 ft (52.7 m) long and 21 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesRt C E
CrossesLong Br
LocationS 2 T 59 N R 20 W
RouteState Highway 0C
Coordinates39.95781, -93.10116
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.8 US tons
Inventory rating11.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 10
Structure length173 ft (52.7 m)
Longest span44 ft (13.4 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic289 (2024)
Projected traffic361 by 2044
Trucks11%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt C E over Long Br built?

It was built in 1930, making it 95 years old in 2025.

What condition is Rt C E over Long Br in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Rt C E over Long Br carry?

About 289 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt C E over Long Br?

The structure is 173 ft (52.7 m) long with a longest span of 44 ft (13.4 m) and a deck 21 ft wide.

Who owns Rt C E over Long Br?

It is owned by the State Highway Agency.