US Bridges

Keck Road/ TR 319 over E Fk Silver Ck

Fair

Madison County, Illinois · 1.75 MI NW ST Jac · Structure no. 060324000000000

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
247 ft
4 main spans
Daily traffic
125
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Keck Road/ TR 319 over E Fk Silver Ck is a prestressed concrete box beam or girders - multiple carrying Keck Road/ TR 319 over E Fk Silver Ck in Madison County, Illinois. It was built in 1980, so it is 45 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 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 125 vehicles a day, roughly 17% of them trucks, projected to reach 134 by 2046. The structure is 247 ft (75.3 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKeck Road/ TR 319
CrossesE Fk Silver Ck
Location1.75 MI NW ST Jac
RouteCounty Highway 0
CountyMadison County
StateIllinois
Coordinates38.72877, -89.79824
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length247 ft (75.3 m)
Longest span61 ft (18.6 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2021)
Projected traffic134 by 2046
Trucks17%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Keck Road/ TR 319 over E Fk Silver Ck built?

It was built in 1980, making it 45 years old in 2025.

What condition is Keck Road/ TR 319 over E Fk Silver Ck 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 2024.

How much traffic does Keck Road/ TR 319 over E Fk Silver Ck carry?

About 125 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is Keck Road/ TR 319 over E Fk Silver Ck?

The structure is 247 ft (75.3 m) long with a longest span of 61 ft (18.6 m) and a deck 31 ft wide.

Who owns Keck Road/ TR 319 over E Fk Silver Ck?

It is owned by the Town or Township Highway Agency.