US Bridges

Keegan St(ms 4160) over Grape Creek

Poor

Vermilion County, Illinois · S End of Tilton · Structure no. 092602200000000

Built
1900
125 years old
Condition
Poor
inspected February 2025
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
100
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Keegan St(ms 4160) over Grape Creek is a concrete slab carrying Keegan St(ms 4160) over Grape Creek in Vermilion County, Illinois. It was built in 1900, so it is 125 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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.

It carries about 100 vehicles a day, roughly 9% of them trucks, projected to reach 101 by 2046. The structure is 30 ft (9.1 m) long and 21 ft wide.

Location

Open in Google Maps
CarriesKeegan St(ms 4160)
CrossesGrape Creek
LocationS End of Tilton
RouteCity Street 0
CountyVermilion County
StateIllinois
Coordinates40.09249, -87.64211
Functional classUrban Local

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width21 ft (6.3 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic101 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$83,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Keegan St(ms 4160) over Grape Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is Keegan St(ms 4160) over Grape Creek 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 February 2025.

How much traffic does Keegan St(ms 4160) over Grape Creek carry?

About 100 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Keegan St(ms 4160) over Grape Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 21 ft wide.

Who owns Keegan St(ms 4160) over Grape Creek?

It is owned by the City or Municipal Highway Agency.