US Bridges

Il 29 over Boyds Hollow

Fair

Peoria County, Illinois · 0.5M S Mossville RD · Structure no. 072022600000000

Built
2015
10 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
11,400
2023 count
Owner
State
State Highway Agency

About this bridge

Il 29 over Boyds Hollow is a steel stringer/multi-beam or girder carrying Il 29 over Boyds Hollow in Peoria County, Illinois. It was built in 2015, so it is 10 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 11,400 vehicles a day, roughly 7% of them trucks, projected to reach 9,494 by 2046. The structure is 61 ft (18.6 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIl 29
CrossesBoyds Hollow
Location0.5M S Mossville RD
RouteState Highway 29
CountyPeoria County
StateIllinois
Coordinates40.80889, -89.57058
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating57.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length61 ft (18.6 m)
Longest span58 ft (17.8 m)
Deck width87 ft (26.6 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,400 (2023)
Projected traffic9,494 by 2046
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Il 29 over Boyds Hollow built?

It was built in 2015, making it 10 years old in 2025.

What condition is Il 29 over Boyds Hollow 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 Il 29 over Boyds Hollow carry?

About 11,400 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 29 over Boyds Hollow?

The structure is 61 ft (18.6 m) long with a longest span of 58 ft (17.8 m) and a deck 87 ft wide.

Who owns Il 29 over Boyds Hollow?

It is owned by the State Highway Agency.