US Bridges

Rice RD Ch 15 over Trib to Mazon River

Fair

Grundy County, Illinois · 0.2 MI E Halpin Road · Structure no. 032334000000000

Built
1952
73 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
81 ft
2 main spans
Daily traffic
1,100
2024 count
Owner
County
County Highway Agency

About this bridge

Rice RD Ch 15 over Trib to Mazon River is a concrete continuous slab carrying Rice RD Ch 15 over Trib to Mazon River in Grundy County, Illinois. It was built in 1952, so it is 73 years old, older 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 1,100 vehicles a day, roughly 12% of them trucks, projected to reach 1,440 by 2046. The structure is 81 ft (24.7 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRice RD Ch 15
CrossesTrib to Mazon River
Location0.2 MI E Halpin Road
RouteCounty Highway 0
CountyGrundy County
StateIllinois
Coordinates41.17249, -88.24823
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating46.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length81 ft (24.7 m)
Longest span39 ft (11.9 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2024)
Projected traffic1,440 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Rice RD Ch 15 over Trib to Mazon River built?

It was built in 1952, making it 73 years old in 2025.

What condition is Rice RD Ch 15 over Trib to Mazon River 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 Rice RD Ch 15 over Trib to Mazon River carry?

About 1,100 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Rice RD Ch 15 over Trib to Mazon River?

The structure is 81 ft (24.7 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.

Who owns Rice RD Ch 15 over Trib to Mazon River?

It is owned by the County Highway Agency.