US Bridges

Mo 100 E over Moc RR

Fair

Franklin County, Missouri · S 11 T 43 N R 1 E · Structure no. 4958

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
120 ft
3 main spans
Daily traffic
8,872
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 100 E over Moc RR is a steel continuous stringer/multi-beam or girder carrying Mo 100 E over Moc RR in Franklin County, Missouri. It was built in 1969, so it is 56 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 8,872 vehicles a day, roughly 8% of them trucks, projected to reach 16,857 by 2044. The structure is 120 ft (36.6 m) long and 47 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesMo 100 E
CrossesMoc RR
LocationS 11 T 43 N R 1 E
RouteState Highway 100
CountyFranklin County
StateMissouri
Coordinates38.48124, -90.87931
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length120 ft (36.6 m)
Longest span48 ft (14.6 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,872 (2024)
Projected traffic16,857 by 2044
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 100 E over Moc RR built?

It was built in 1969, making it 56 years old in 2025.

What condition is Mo 100 E over Moc RR 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 October 2023.

How much traffic does Mo 100 E over Moc RR carry?

About 8,872 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Mo 100 E over Moc RR?

The structure is 120 ft (36.6 m) long with a longest span of 48 ft (14.6 m) and a deck 47 ft wide.

Who owns Mo 100 E over Moc RR?

It is owned by the State Highway Agency.