There was a Civil Defence emergency declared in Tuapeka County on the 5th to the 6th of June, which included Kelso and Tapanui. States of civil emergency were declared for a large part of the Taieri Plain between Mosgiel and and Henley and later at Paretai. There was a Civil Defence Declaration on 05/06 to the 06/06 in Clutha County. Silverpeaks County was the worst hit area. There was a Civil Defence declaration in Silverpeaks County from 05/06 to the 03/07.

At least 8370 hectares of land was flooded.

There were 124 homes flooded.

Stock losses included 1680 sheep, 151 dairy cows and 79 yearling cattle. Stock that were evacuated included 7500 cattle and 6200 sheep.

The floods of Taieri, Otago and New Plymouth insurance industry payouts combined were $8,000,000 ($35,600,000 2009 dollars).

The Main Trunk line south of Dunedin was closed between Mosgiel and Balclutha by flooding. Railway lines into and out of Dunedin were blocked by flooding. North of the city, the Main Trunk line was open to Hampden but closed from there to Herbert. The Kurow and Makareao branch lines were also closed. There was considerable damage to the Central Otago line with thirty slips, scours or washouts found in a five kilometre stretch of line between Mount Allan and Hindon.

Electricity supplies to many parts of the provice particularly to the more flood-prone areas were cut sometimes for several hours at a time. The Cherry Farm Hospital complex, Waikouaiti, Karitane, Seacliff and other areas as far as Heywood Point were without power on the 5th. The Dunback district was also without power. Linemen could not get into isolated areas to restore the supply.

The approaches to the Happy Valley Bridge on State Highway 85 were washed out on the 5th. The northern approaches of the Sutton Bridge were washed away leaving a 14 metre gap between the bridge and the road. One of the worst hit sections was State Highway 85 between Palmerston and Kyeburn. Damaged bridge approaches, washouts and slips completely closed the road. It was not expected to be opened for a week.

Seven State Highways and numerous roads were closed to all traffic on the 5th. SH1 was closed between Milton and Clarksville, Waitati and Waikouaiti and between Pukeuri and the Waitaki Bridge. SH6 was closed between Frankton and Lumsden. SH8 was closed between Clarksville and Manuka Gorge and between Clyde and Cromwell Gorge. SH87 was closed between Mosgiel and and Outram at the Outram Bridge and between Mosgiel and Middlemarch at the Sutton Bridge. SH87 was scoured out in at least six places in the Maniatoto area. SH90 was closed between Raes Junction, Tapanui and McNab. SH92 was closed between Owaka and McLennan at Kahuika. The Balclutha to Clydevale road was closed at the Waitahuna River bridge. Taieri Mouth Bridge was closed. Numerous roads were still closed on the 7th.

Water supplies to Karitane, Waikouaiti and Merton were restricted due to flood damage to the systems pumps and motors.

Balclutha and the surrounding area escaped the worst of the flooding. Clutha River stayed within its flood banks leaving the town and countryside relatively flood free.

There was a Civil Defence Declaration on 04/06 to 05/06 in Dunedin.

Dunedin airport was under water for six weeks.

There was several centimetres of water on roads and highways in and out of Dunedin on the 4th.

Three Mile Hill road was closed by flooding and there was water up to 60 cm deep across it.

700 telephones in South Dunedin and St Clair were put out of action by water entering cables. Some telephone in Port Chalmers were also unusable.

The Water of Leigh was 4.5 metres above normal.

To the north of the city, the main highway was closed in several places by floodwater, notably between Kilmog and Cherry Farm Hospital.

There were slips on the railway between Dunedin and Mosgiel which forced the cancellation of suburban services on the 5th. All long distance rail travel and railways road service bus timeables were cancelled from Dunedin because of water across the lines and roads.

Portobello Road was severely flooded and blocked by a number of slips.

The Kakanui River Valley and surrounding areas were hard hit by flood waters.

At Karitane the bulk of the town's fishing fleet was lost on the 5th. Some were sunk and others were swept out to sea or washed ashore. The Wakouaiti River overflowed so widely that the course could not be located.

50 people at Kelso were evacuated.

Twelve people from four families decided to evacuate town after both approaches to the Kokonga bridge were washed away by the river.

Houses in Momona were evacuated on the afternoon of the 5th when it was feared that they and the nearby airport would be flooded.

Gladstone Road in Mosgiel between Riccarton and Cemetary Roads was closed on the night of the 4th.

Most streets had surface flooding.

The power was cut off for more than three hours.

The concrete bridge over the Taieri River at Outram lost two central sections and two piers due to the large amount of trees that were brought down in the flood.

Families from four streets were evacuated due to fears the stopbank protecting Outram might breach.

Residents in the Owaka area were without power for two hours on the 5th when six poles were brought down in the Inch Clutha area. Users in the outlying areas around Owaka and Inch Clutha also lost power.

Three farming families were isolated by floodwaters for more than three days.

There were large numbers of sheep and cattle lost on the Taieri Plains.

There was a Civil Defence Declaration for the Taieri Plains.

There were 1400 people evacuated from Taieri Plains. Including all people in the area south of Miller Road and Bruce Road between the contour channel and State Highway 1 were evacuated.

Damage cost was estimated at $30,000,000 ($128,200,000 2009 dollars).

Agriculture assistance for the flood was $1,720,000 in 1991 ($2,550,000 2009 dollars).

Taieri River had a peak flow of 2550 cumecs (the normal flow was between 40 and 50 cumecs).

There was extensive flooding from the Taieri and Waipori Rivers. They overtopped dams and stopbanks. A massive breach opened in a stopbank beside the Waipori River near Berwick, pouring huge volumes of water over the plain. From south of Mosgiel to Lake Waihola, and from State Highway 1 to the foothills, the plain was a mass of floodwater.

Mosgiel, East Taieri, Outram and Berwick had their electricity supply cut.

Hundreds of dairy cows had to removed from flooded farms on the plain. About 800 milking cows were shifted on to the flood-free highway.

Major damage was caused to the pasture on the Taieri Plain, in addition to the damage to houses, buildings and vehicles, all of which had to be abandoned in a hurry on the 5th. The floodwater lying on the Taieri Plains was probably 20 times greater than all the pumps available could handle and large areas of land were unproductive for up to three months. As flood water was pumped from farmland, paddocks had become pools of mud and strewn with logs and debris.

By the 10th the area covered by the state of civil emergency was reduced to a little less 5000 hectares on the Taieri Plains. The emergency area was now bounded by Maungatua Road in the west, Miller and Bruce Roads in the north, and the old South Road in the east. The Silverpeaks County boundary with the Bruce County on the northern banks of Lake Waipori formed the southern limit of the state of emergency. The depth of flooding on the 10th still ranged from shallow surface flooding at Momona to 2.1 metres at the southern end by Lake Waipori. By the 19th there were still 326 people unable to return to their houses.

All women and children were evacuated from Waipori (about 70 people in all).

There was a Civil Defence emergency declared in West Taieri on the 6th due to the Waipori River being at a record level high.