US Bridges

FAS 611 over Conover Branch

Fair

Morgan County, Illinois · 3 MI E Literberry · Structure no. 069325400000000

Built
2005
20 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
243 ft
4 main spans
Daily traffic
225
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 611 over Conover Branch is a prestressed concrete box beam or girders - multiple carrying FAS 611 over Conover Branch in Morgan County, Illinois. It was built in 2005, so it is 20 years old, younger than the Illinois average of 45.3 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 225 vehicles a day, roughly 12% of them trucks, projected to reach 253 by 2046. The structure is 243 ft (74.2 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAS 611
CrossesConover Branch
Location3 MI E Literberry
RouteCounty Highway 0
CountyMorgan County
StateIllinois
Coordinates39.84388, -90.14978
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating48.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length243 ft (74.2 m)
Longest span73 ft (22.1 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2024)
Projected traffic253 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FAS 611 over Conover Branch built?

It was built in 2005, making it 20 years old in 2025.

What condition is FAS 611 over Conover Branch 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 FAS 611 over Conover Branch carry?

About 225 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is FAS 611 over Conover Branch?

The structure is 243 ft (74.2 m) long with a longest span of 73 ft (22.1 m) and a deck 30 ft wide.

Who owns FAS 611 over Conover Branch?

It is owned by the County Highway Agency.