Coll 7112 over Rocky Hollow

Good

Banner County, Nebraska · 9S of Harrisburg · Structure no. C000404005

Built: 1965; 60 years old
Condition: Good; inspected November 2024
Type: Slab; Concrete Continuous
Length: 87 ft; 3 main spans
Daily traffic: 90; 1998 count
Owner: County; County Highway Agency

About this bridge

Coll 7112 over Rocky Hollow is a concrete continuous slab carrying Coll 7112 over Rocky Hollow in Banner County, Nebraska. It was built in 1965, so it is 60 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 90 vehicles a day, projected to reach 153 by 2033. The structure is 87 ft (26.5 m) long and 29 ft wide. If it were closed, the detour would be 80.8 mi (130 km).

Location

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CarriesColl 7112

CrossesRocky Hollow

Location9S of Harrisburg

RouteCounty Highway 7112

CountyBanner County

StateNebraska

Coordinates41.4225, -103.7445

Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionNovember 2024

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 adequacy8: Equal to present desirable criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating44.1 US tons

Inventory rating26.5 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadUnknown

Structure length87 ft (26.5 m)

Longest span34 ft (10.4 m)

Deck width29 ft (8.7 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (1998)

Projected traffic153 by 2033

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed80.8 mi (130 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 Coll 7112 over Rocky Hollow built?

It was built in 1965, making it 60 years old in 2025.

What condition is Coll 7112 over Rocky Hollow in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Coll 7112 over Rocky Hollow carry?

About 90 vehicles per day (1998 count).

How long is Coll 7112 over Rocky Hollow?

The structure is 87 ft (26.5 m) long with a longest span of 34 ft (10.4 m) and a deck 29 ft wide.

Who owns Coll 7112 over Rocky Hollow?

It is owned by the County Highway Agency.